The University of Tokyo   Special researcher of the Japan Society for the Promotion of Science

1998.4 - 2001.3

Effect of Annealing in Eutectic High-Entropy Alloy Superconductor NbScTiZr Reviewed

Takeru Seki, Hiroto Arima, Yuta Kawasaki, Terukazu Nishizaki, Yoshikazu Mizuguchi, Jiro Kitagawa

Journal of Superconductivity and Novel Magnetism   37 ( 5-7 )   1059 - 1068   2023.11

Low-temperature giant coercivity in Co6.2Ga3.8-xGex (x=2.4 to 3.2) Reviewed

J. Kitagawa, H. Nomura, and T. Nishizaki

Mater. Res. Express   10   106102   2023.10

High-entropy effect at rare-earth site in DyNi Reviewed

Y. Nakamura, K. Takeshita, T. Nishizaki, and J. Kitagawa

AIP Advances   13   095323   2023.9

Metallurgy, superconductivity, and hardness of a new high-entropy alloy superconductor Ti-Hf-Nb-Ta-Re Reviewed

T. Hattori, Y. Watanabe, T. Nishizaki, K. Hiraoka, M. Kakihara, K. Hoshi, Y. Mizuguchi, and J. Kitagawa

J. Alloys and Metallurgical Systems   3   100020   2023.7

Underlying mechanism of the driving force for generating spin currents thermally in a ferrimagnetic insulator due to a temperature gradient Reviewed

M. Imamura, H. Asada, Y. Kano, R. Matsuda, D. Tashima, and J. Kitagawa

AIP Advances   13   025001   2023.2

新しい高エントロピー合金超伝導体・磁性体の開発 Reviewed

北川二郎、西嵜照和

高圧力の科学と技術   32 ( 2 )   77   2023.2

Datasets on materials research of hard ferromagnet in TM-Fe-Si (TM=Ti, Zr, Hf, V, Nb, and Ta) ternary systems Reviewed

R. Ishibashi and J. Kitagawa

Data in Brief   46   108868   2023.1

Magnetic properties, electrical resistivity, and hardness of high-entropy alloys FeCoNiPd and FeCoNiPt Reviewed

J. Kitagawa

J. Magn. Magn. Mater.   563   170024   2022.10

Discovery of ferromagnetism in new multicomponent alloy Ti-Nb-Cr-Ru Reviewed

J. Kitagawa, M. Fukuda, S. Fukuda, K. Fujiki, Y. Nakamura, and T. Nishizaki

APL Mater.   10   071101   2022.7

Superconductivity and hardness of the equiatomic high-entropy alloy HfMoNbTiZr Reviewed

J. Kitagawa, K. Hoshi, Y. Kawasaki, R. Koga, Y. Mizuguchi, and T. Nishizaki

J. Alloys and Compounds   924   166473   2022.7

Fully gapped superconducting state in interstitial-carbon-doped Zr5Pt3 Reviewed

T. Shang, J. Philippe, X. Y. Zhu, H. Zhang, B. C. Yu, Z. X. Zhen, H. –R. Ott, J. Kitagawa, and T. Shiroka

Phys. Rev. B   106   014507   2022.7

Magnetic properties and magnetocaloric effect of Fe3Ga0.35Ge1.65 Reviewed

J. Kitagawa

J. Phys. Soc. Jpn.   91   065004   2022.5

Characteristics of spin-thermoelectric generators enhanced by incorporating liquid phase epitaxial Bi-substituted YIG films as a ferrimagnetic insulator Reviewed

M. Imamura, H. Asada, R. Nishimura, Y. Kano, D. Tashima, and J. Kitagawa

J. Magn. Magn. Mater.   550   169081   2022.2

Thermoelectric Characteristics of STE Generator Fabricated From LPE Bi- and Al-Substituted YIG Films Reviewed

M. Imamura, H. Asada, R. Nishimura, D. Tashima, and J. Kitagawa

IEEE Trans. Magn.   58   4500111   2022.1

Superconductivity in Al-Nb-Ti-V-Zr multicomponent alloy Reviewed

Y. Harayama and J. Kitagawa

J. Supercond. Nov. Magn.   34   2787   2021.7

Magnetic and Transport Properties of New Dual-Phase High-Entropy Alloy FeRhIrPdPt Reviewed

K. BaBa, N. Ishizu, T. Nishizaki and J. Kitagawa

Materials   14   2877   2021.5

Enhancement of the spin Seebeck effect owing to bismuth substitution in thermoelectric generators fabricated from LPE Bi-substituted YIG films Reviewed

M. Imamura, H. Asada, R. Nishimura, K. Yamaguchi, D. Tashima, and J. Kitagawa

AIP Advances   11   035143   2021.3

Interstitial Atom Engineering in Magnetic Materials Reviewed

J. Kitagawa, K. Sakaguchi, T. Hara, F. Hirano, N. Shirakawa and M. Tsubota

Metals   10   1644   2020.12

Magneto-optical properties of wider gap semiconductors ZnMnTe and ZnMnSe films prepared by MBE Reviewed

M. Imamura, D. Tashima, J. Kitagawa, and H. Asada

J. Electron. Sci. Technol.   18   100056   2020.10

Cutting edge of high-entropy alloy superconductors from the perspective of materials research Reviewed

J. Kitagawa, S. Hamamoto, and N. Ishizu

Metals   10   1078   2020.8

Competition between ferromagnetic and antiferromagnetic states in Al8.5-xFe23Ge12.5+x (0≦x≦3) Reviewed

J. Kitagawa, G. Yakabe, A. Nakayama, T. Nishizaki and M. Tsubota

J. Solid State Chem.   284   121188   2020.4

Crossover from multiple- to single-gap superconductivity in Nb5Ir3-xPtxO alloys Reviewed

Y. Xu, S. Johr, L. Das, J. Kitagawa, M. Medarde, T. Shiroka, J. Chang, and T. Shang

Phys. Rev. B   101   134513   2020.4

Superconductivity in Nb5Ir3-xPtxO

J. Kitagawa and S. Hamamoto

International conference on strongly correlated electron systems 2019/JPS Conf. Proc.   30   011055   2020.3

Superconductivity in Nb5Ir3-xPtxO Reviewed

J. Kitagawa and S. Hamamoto

JPS Conf. Proc.   30   011055   2020.3

The impact of the composition effect on ferromagnetic properties of Tb2Co2Ga Reviewed

S. Tanaka, H. Terada, N. Shirakawa, M. Tsubota and J. Kitagawa

Metals   9   1242   2019.11

Inter-comparison of lattice parameters and evaluation of peak-shift obtained by Rietveld refinements Reviewed

M. Tsubota, B. Paik and J. Kitagawa

Results in Physics   15   102640   2019.9

Composition effect in ferromagnetic properties of Tb3Co3Ga Reviewed

J. Kitagawa, H. Terada, N. Shirakawa, M. Tsubota, A. Nose and S. Tanaka

Results in Physics   15   102591   2019.8

極薄Ptレイヤの単結晶YIG膜および多結晶板によるLSSE素子のスピン熱電発電電圧 Reviewed

今村 正明, 浅田 裕法, 田島 大輔, 北川 二郎

電気学会論文誌A   139   291   2019.6

New high-entropy alloy superconductor Hf21Nb25Ti15V15Zr24 Reviewed

N. Ishizu and J. Kitagawa

Results in Physics   13   102275   2019.4

New room-temperature ferromagnet: B-added Pd0.75Mn0.25 alloy Reviewed

J. Kitagawa and K. Sakaguchi

J. Magn. Magn. Mater.   468   115   2018.8

Superconductivity in oxygen-added Zr5Pt3 Reviewed

S. Hamamoto and J. Kitagawa

Mater. Res. Express   5   106001   2018.8

Hill plot focusing on Ce Compounds with high magnetic ordering temperatures and consequent study of Ce2AuP3 Reviewed

J. Miyahara, N. Shirakawa, Y. Setoguchi, M. Tsubota, K. Kuroiwa, and J. Kitagawa

J. Supercond. Nov. Magn.   31   3559   2018.3

A necessary criterion for obtaining accurate lattice parameters by Rietveld method Reviewed

M. Tsubota and J. Kitagawa

Scientific Reports   7   15381   2017.11

Rare Earth Extraction from NdFeB Magnet Using a Closed-Loop Acid Process Reviewed

J. Kitagawa and R. Uemura

Scientific Reports   7   8039   2017.8

Illumination effect on superconductivity of bulk CeFeAsO0.65F0.35

J. Kitagawa, T. Yoshika, and N. Gonda

Rare Earths 2016   2P-17   2016.6

Optical, transport and magnetic properties of new compound CeCd3P3 Reviewed

S. Higuchi, Y. Noshima, N. Shirakawa, M. Tsubota, and J. Kitagawa

Mater. Res. Express   3   056101   2016.5

Photoinduced Kondo effect in CeZn3P3 Reviewed

J. Kitagawa, D. Kitajima, K. Shimokawa, and H. Takaki

Physical Review B   93   035122   2016.1

Improved room-temperature-selectivity between Nd and Fe in Nd recovery from Nd-Fe-B magnet Reviewed

Y. Kataoka, T. Ono, M. Tsubota, and J. Kitagawa

AIP Advances   5   117212   2015.11

Hydrogenation of Nd-Fe-B magnet powder under a high pressure of hydrogen Reviewed

Y. Kataoka, Y. Kawamoto, T. Ono, M. Tsubota, and J. Kitagawa

Results in Physics   5   99   2015.4

Synthesis and physical properties of a new caged compound Ce3Pd20As6 of the C6Cr23-type structure Reviewed

K. Orita, K. Uenishi, M. Tsubota, Y. Shimada, T. Onimaru, T. Takabatake, and J. Kitagawa

J. Alloys and Compounds   622   676   2015.2

Physical properties of new cerium palladium phosphide with C6Cr23-type structure Reviewed

T. Abe, K. Uenishi, K. Orita, M. Tsubota, Y. Shimada, T. Onimaru, T. Takabatake, and J. Kitagawa

Results in Physics   4   137   2014.9

Photoexcitation effect on transport properties of CeZnSbO Reviewed

W. Kozasa, H. Tanaka, M. Tsubota, and J. Kitagawa

Mater. Res. Express   1   035902   2014.7

Possible phase transition and band gap closing in photoexcited semiconductor CeZn3P3 Reviewed

J. Kitagawa

J. Phys. Soc. Jpn.   82   125001   2013.12

Low-temperature magnetic properties of RE2Ni21B6 (RE=Er, Tm, Yb and Lu) Reviewed

J. Kitagawa, N. Takeda, and M. Ishikawa

J. Alloys and Compounds   561   101   2013.6

Crystal polymorphism in TmPd3S4 Reviewed

J. Kitagawa, R. Yada, M. Ichihara, and M. Ishikawa

Results in Physics   3   80   2013.6

Characterization of terahertz absorption in clathrate compound by compact spectroscopic chip Reviewed

J. Kitagawa, Y. Kadoya, K. Suekuni, M. A. Avila, and T. Takabatake

Jpn. J. Appl. Phys.   52 ( 2 )   028003   2013.2

Itinerant 5f electrons in U2T21B6 (T=Ni and Co) Reviewed

J. Kitagawa and M. Ishikawa

Solid State Communications   153 ( 1 )   76   2013.1

THz waveguide based on two dimensional metallic photonic crystals embedded in parallel plates

S. Koya, M. Kodama, D. Armand, J. Kitagawa, and Y. Kadoya

International Symposium on Frontiers in THz Technology (FTT2012, Nara, Japan, Nov.26-30, 2012)   Paper No.Pos1.37   2012.11

THz wave propagation in two-dimensional metallic photonic crystal with mechanically tunable photonic-bands Reviewed

J. Kitagawa, M. Kodama, S. Koya, Y. Nishifuji, D. Armand, and Y. Kadoya

Optics Express   20 ( 16 )   17271   2012.7

Horn antenna in THz regime

D. Armand, Y. Nishifuji, J. Kitagawa, and Y. Kadoya

3rd European Optical Society Topical Meeting on Terahertz Science and Technology (TST 2012, Prague, Czech Republic)   Paper No:5295   2012.6

Direct measurement of local THz electric field and its enhancement in the gap of dipole antennas

S. Miyamoto, H. Tanaka, D. Armand, J. Kitagawa, and Y. Kadoya

3rd European Optical Society Topical Meeting on Terahertz Science and Technology (TST 2012, Prague, Czech Republic)   Paper No:5278   2012.6

Photonic crystal between metallic parallel plates, effect of air gap on band structure

S. Koya, D. Armand, M. Kodama, J. Kitagawa, and Y. Kadoya

3rd European Optical Society Topical Meeting on Terahertz Science and Technology (TST 2012, Prague, Czech Republic)   Paper No:5293   2012.6

Design of two-dimensional low-dielectric photonic crystal and its terahertz waveguide application Reviewed

J. Kitagawa, M. Kodama, and Y. Kadoya

Jpn. J. Appl. Phys.   51   062201   2012.6

New design of terahertz metallic photonic crystal with mechanically tunable photonic -band-gap

J. Kitagawa, M. Kodama, Y. Nishifuji, D. Armand, and Y. Kadoya

International Quantum Electronics/Laser and Electro-Optics Conference (IQEC/CLEO Pacific Rim 2011, Sydney, Australia)   4420-CT-5   2011.8

THz pulse propagation on microstrip discontinuities Reviewed

N. Sato, J. Kitagawa, and Y. Kadoya

Journal of Infrared, Millimeter and Terahertz Waves   32   666   2011.5

Improved sensitivity of terahertz detection by GaAs photoconductive antennas excited at 1560 nm Reviewed

T. Kataoka, K. Kajikawa, J. Kitagawa, Y. Kadoya, and Y. Takemura

Appl. Phys. Lett.   97   201110   2010.11

Enhancement of THz field in a gap of dipole antenna

Y. Kadoya, H. Tanaka, Y. Sugitani, J. Kitagawa, F. Blanchard, H. Hirori, A. Doi, M. Nagai, and K. Tanaka

Conference Digest of the 35th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2010, Rome, Italy)   We-P.52   2010.9

Efficient detection of THz pulses using low-temperature-grown GaAs photoconductive antennas excited at 1560 nm

Y. Kadoya, K. Kajikawa, T. Kataoka, J. Kitagawa, and Y. Takemura

Conference Digest of the 35th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2010, Rome, Italy)   Tu-P.18   2010.9

Detection of THz waves by GaAs photoconductive antennas excited at 1560 nm with tight focusing

Y. Kadoya, K. Kajikawa, T. Kataoka, and J. Kitagawa

20th International Conference on Applied Electromagnetics and Communications (ICECom, Dubrovnik, Croatia)   Wed_B_12:40   2010.8

Site-specific valence fluctuations in Eu3Pd20Ge6 studied via Mössbauer and X-ray absorption spectroscopies Reviewed

S. Tsutsui, M. Mizumaki, Y. Kobayashi, J. Kitagawa, and T. Takabatake

Phys. Rev. B   80   235115   2009.12

Propagation of THz pulses on microstrip discontinuities

N. Sato, J. Kitagawa, and Y. Kadoya

Conference Digest of the 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009, Busan, Korea)   T5E48.0152   2009.9

Design of THz near-field probes integrated on printed striplines

T. Tone, J. Kitagawa, and Y. Kadoya

Conference Digest of the 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009, Busan, Korea)   T5E49.0151   2009.9

Propagation of terahertz pulses on polymer-based coplanar striplines

N. Ohta, S. Yanagi, M. Onuma, J. Kitagawa, and Y. Kadoya

Asia Pacific Microwave Conference 2008 (APMC 2008, Hong Kong, China)   A3-37   2008.12

THz wave propagation on strip lines: devices, properties, and applications

Y. Kadoya, M. Onuma, S. Yanagi, T. Ohkubo, N. Sato, and J. Kitagawa

19th International Conference on Applied Electromagnetics and Communications (ICECom, Dubrovnik, Croatia)/Radioengineering   17   48   2008.6

Propagation of terahertz pulses on coplanar strip-lines on low permittivity substrates and a spectroscopic application Reviewed

S. Yanagi, M. Onuma, J. Kitagawa, and Y. Kadoya

Appl. Phys. Express   1   012009   2008.1

THz wave propagation on strip lines: devices, properties, and applications Reviewed

Y. Kadoya, M. Onuma, S. Yanagi, T. Ohkubo, N. Sato, and J. Kitagawa

Radioengineering   17   48   2008

THz fingerprint spectra detected by sensor chips based on coplanar strip-lines made on low-permittivity plastic substrate

J. Kitagawa, S. Yanagi, M. Onuma, and Y. Kadoya

Conference Digest of the Joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics (IRMMW/THz 2007, Cardiff, UK)   283   2007.9

InGaAs photodiodes as an emitter of THz waves for 1560 nm pulse excitation

Y. Kadoya, T. Matsui, A. Takazato, and J. Kitagawa

Conference Digest of the Joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics (IRMMW/THz 2007, Cardiff, UK)   987   2007.9

Fiber-coupled sensor chip based on micro-strip-line working in THz regime

J. Kitagawa, Y. Akiyama, M. Onuma, and Y. Kadoya

Conference Digest of the Joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics (IRMMW/THz 2007, Cardiff, UK)   857   2007.9

Terahertz transmission property of quadrupole electric field in three-strip coplanar transmission-line on low-permittivity substrate

M. Onuma, J. Kitagawa, and Y. Kadoya

Conference Digest of the Joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics (IRMMW/THz 2007, Cardiff, UK)   411   2007.9

Terahertz conductivity of localized photoinduced carriers in Mott insulator YTiO3 at low excitation density, contrasted with metallic nature in band semiconductor Si Reviewed

J. Kitagawa, Y. Kadoya, M. Tsubota, F. Iga, and T. Takabatake

J. Phys.: Condens. Matter.   19   406224   2007.9

Terahertz wave emission and detection using photoconductive antennas made on low-temperature-grown InGaAs with 1.56 μm pulse excitation Reviewed

A. Takazato, M. Kamakura, T. Matsui, J. Kitagawa, and Y. Kadoya

Appl. Phys. Lett.   91   011102   2007.7

InGaAs photoconductive antennas for THz emission and detection with 1.56 μm excitation

A. Takazato, T. Matsui, J. Kitagawa, and Y. Kadoya

2007 Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS '07, Baltimore, Maryland, USA)   CThR1   2007.5

Terahertz time-domain spectroscopy of photoinduced carriers in YTiO3

J. Kitagawa, Y. Kadoya, M. Tsubota, F. Iga, and T. Takabatake

International Conference on Magnetism (ICM2006, Kyoto, Japan)/J. Magn. Magn. Mat.   310   913   2007.3

Detection of terahertz waves using low-temperature-grown InGaAs with 1.56 μm pulse excitation Reviewed

A. Takazato, M. Kamakura, T. Matsui, J. Kitagawa, and Y. Kadoya

Appl. Phys. Lett.   90   101119   2007.3

Terahertz time-domain spectroscopy of photoinduced carriers in YTiO3 Reviewed

J. Kitagawa, Y. Kadoya, M. Tsubota, F. Iga, and T. Takabatake

J. Magn. Magn. Mat.   310   913   2007

Generation and detection of THz waves by 1.55 μm pulse excitation of InGaAs photoconductive antennas

Y. Kadoya, A. Takazato, M. Kamakura, and J. Kitagawa

Conference Digest of the Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics (IRMMW/THz 2006, Shanghai, China)   533   2006.9

Terahertz time-domain spectroscopy of photoinduced carriers in YTiO3

J. Kitagawa, Y. Kadoya, M. Tsubota, F. Iga, and T. Takabatake

Conference Digest of the Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics (IRMMW/THz 2006, Shanghai, China)   458   2006.9

THz spectroscopic performance comparison between micro-strip-line based sensing methods and attenuated total reflection

M. Onuma, T. Ohkubo, J. Kitagawa, and Y. Kadoya

Conference Digest of the Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics (IRMMW/THz 2006, Shanghai, China)   466   2006.9

Possible polaron effect in complex terahertz conductivity of electron-doped nanoporous crystal 12CaO・7Al2O3 Reviewed

J. Kitagawa, M. Ishizaka, Y. Kadoya, S. Matsuishi, and H. Hosono

J. Phys. Soc. Jpn.   75   084715   2006.8

THz spectroscopic characterization of biomolecule/water systems by compact sensor chips Reviewed

J. Kitagawa, T. Ohkubo, M. Onuma, and Y. Kadoya

Appl. Phys. Lett.   89   041114   2006.7

Characterization of liquid water containing bio-molecules using micro-strip-line THz sensors

Y. Kadoya, T. Ohkubo, and J. Kitagawa

2006 Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS 2006, Long Beach, USA)   JTuD22   2006.5

Generation and detection of THz waves using InGaAs photoconductive antenna with 1.55 μm excitation

Y. Kadoya, M. Kamakura, A. Takasato, and J. Kitagawa

2006 Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS 2006, Long Beach, USA)   JTuD26   2006.5

Micro-strip-line-based sensing chips for characterization of polar liquids in terahertz regime Reviewed

T. Ohkubo, M. Onuma, J. Kitagawa, and Y. Kadoya

Appl. Phys. Lett.   88   212511   2006.5

Pressure induced Kondo coherence effect in Ce2Pd3Si5

M. Abliz, M. Hedo, J. Kitagawa, Y. Uwatoko, and M. Ishikawa

Proceedings of Rare Earths 04, Nara, Japan/J. Alloys and Compounds   408-412   241   2006.2

Pressure induced Kondo coherence effect in Ce2Pd3Si5 Reviewed

M. Abliz, M. Hedo, J. Kitagawa, Y. Uwatoko, and M. Ishikawa

J. Alloys and Compounds   408-412   241   2006

Propagation characteristics of terahertz electrical signals on micro-strip lines made of optically transparent conductors Reviewed

K. Takase, T. Ohkubo, F. Sawada, D. Nagayama, J. Kitagawa, and Y. Kadoya

Jpn. J. Appl. Phys.   44   L1011   2005.7

Observation of Jonscher law in AC hopping conduction of electron-doped nanoporous crystal 12CaO・7Al2O3 in THz frequency range Reviewed

H. Harimochi, J. Kitagawa, M. Ishizaka, Y. Kadoya, M. Yamanishi, S. Matsuishi, and H. Hosono

Phys. Rev. B   70   193104   2004.11

Evaluation of carrier dynamics in n-AlxGa1-xAs films by terahertz time-domain spectroscopy with characteristic-matrix analysis Reviewed

H. Harimochi, J. Kitagawa, Y. Kadoya, and M. Yamanishi

Jpn. J. Appl. Phys.   43   7320   2004.10

Transmission properties of microstrip lines made of optically transparent conductors in THz regime

Y. Kadoya, K. Takase, T. Ohkubo, D. Nagayama, J. Kitagawa, and M. Yamanishi

Conference Digest of the Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW/THz 2004, Karlsruhe, Germany)   143   2004.9

THz time-domain ATR spectroscopy of heavy fermion compounds

J. Kitagawa, Y. Sato, Y. Kadoya, M. Yamanishi, F. Iga, and T. Takabatake

Conference Digest of the Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW/THz 2004, Karlsruhe, Germany)   405   2004.9

THz time-domain spectroscopy of 12CaO・7Al2O3 (C12A7) containing hopping carriers

J. Kitagawa, M. Ishizaka, H. Harimochi, Y. Kadoya, M. Yamanishi, S. Matsuishi, and H. Hosono

Conference Digest of the Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW/THz 2004, Karlsruhe, Germany)   403   2004.9

Pressure effects on the Kondo-lattice compound Ce2Pd3Si5 Reviewed

M. Abliz, M. Hedo, J. Kitagawa, Y. Uwatoko, and M. Ishikawa

Phys. Rev. B   69   172406   2004.5

THz electrical signal propagation waveguided by a single metallic line

D. Nagayama, K. Okita, Y. Kadoya, J. Kitagawa, and M. Yamanishi

Conference Digest of the 28th International Conference on Infrared and Millimeter Waves (IRMMW2003, Otsu, Japan)   529   2003.10

Optical characterization of n-type AlXGa1-XAs alloys with DX center by THz time-domain spectroscopy

H. Harimochi, J. Kitagawa, Y. Kadoya, and M. Yamanishi

Conference Digest of 11th International Conference on Terahertz Electronics (THz2003, Sendai, Japan)   127   2003.9

Thermoelectric properties of Ce-based Kondo semimetals and semiconductors

T. Takabatake, T. Sasakawa, J. Kitagawa, T. Suemitsu, Y. Echizen, K. Umeo, M. Sera, and Y. Bando

The 2nd Hiroshima Workshop Transport and Thermal Properties of Advanced Materials (T2 PAM '02, Hiroshima, Japan)/Physica B   328   53   2003.4

Anisotropic thermoelectronic properties of CeRhAs with superstructures

T. Takabatake, T. Suemitsu, T. Sasakawa, J. Kitagawa, K. Umeo, M. Nakajima, K. Iwasa, and M. Kohgi

International Conference on Strongly Correlated Electron Systems (SCES02, Krakow, Poland)/Acta Physica Polonica B   34   1303   2003.2

Anisotropic thermoelectronic properties of CeRhAs with superstructures Reviewed

T. Takabatake, T. Suemitsu, T. Sasakawa, J. Kitagawa, K. Umeo, M. Nakajima, K. Iwasa, and M. Kohgi

Acta Physica Polonica B   34   1303   2003

Thermoelectric properties of Ce-based Kondo semimetals and semiconductors Reviewed

T. Takabatake, T. Sasakawa, J. Kitagawa, T. Suemitsu, Y. Echizen, K. Umeo, M. Sera, and Y. Bando

Physica B   328   53   2003

Effects of valence fluctuation and pseudogap formation on phonon thermal conductivity of Ce-based compounds with ε-TiNiSi-type structure Reviewed

J. Kitagawa, T. Sasakawa, T. Suemitsu, Y. Echizen, and T. Takabatake

Phys. Rev. B   66   224304   2002.12

μ+SR study of ordering phenomena in the heavy-fermion state of Ce3Pd20Ge6 Reviewed

V. V. Krishnamurthy, I. Watanabe, K. Nagamine, J. Kitagawa, M. Ishikawa, and T. Komatsubara

Hyperfine Interactions   136/137   385   2002.10

Heterogeneous mixed-valence states in RPd3S4 (R=Eu and Yb) viewed from thermopower, electrical resistivity and specific heat Reviewed

J. Kitagawa, T. Takabatake, E. Matsuoka, F. Takahashi, K. Abe, and M. Ishikawa

J. Phys. Soc. Jpn.   71   1630   2002.7

Thermoelectric properties of valence-fluctuating Eu compound with a clathrate-like structure, Eu3Pd20Ge6 Reviewed

J. Kitagawa, T. Sasakawa, T. Suemitsu, T. Takabatake, and M. Ishikawa

J. Phys. Soc. Jpn.   71   1222   2002.5

Magnetic and transport properties of a new valence-fluctuating compound, CeRhP Reviewed

T. Sasakawa, T. Suemitsu, J. Kitagawa, O. Sologub, P. Salamakha, and T. Takabatake

J. Phys.: Condens. Matter   14   L267   2002.3

Evidence of the quadrupolar ordering in DyPd3S4 Reviewed

E. Matsuoka, J. Kitagawa, K. Ohoyama, H. Yoshizawa, and M. Ishikawa

J. Phys.: Condens. Matter   13   11009   2001.11

Powder neutron diffraction study on TbPd3S4 and YbPd3S4 Reviewed

E. Matsuoka, F. Takahashi, J. Kitagawa, K. Ohoyama, H. Yoshizawa, and　M. Ishikawa

J. Magn. Magn. Mat.   231   L23   2001.5

Quadrupolar pair interactions in RPd3S4

K. Abe, J. Kitagawa, N. Takeda, and M. Ishikawa

International Conference of Strongly Correlated Electron Systems (SCES 99, Nagano, Japan)/Physica B   281&282   597   2000.6

Third-order magnetic susceptibility and quadrupolar order parameter of Kondo-lattice compound Ce3Pd20Ge6 Reviewed

J. Kitagawa, N. Takeda, M. Ishikawa, M. Nakayama, N. Kimura, and　T. Komatsubara　

J. Phys. Soc. Jpn.   69   883   2000.3

Pressure effect on transport properties and specific heat of Kondo compound Ce3Pd20Si6 Reviewed

T. Hashiguchi, N. Takeda, J. Kitagawa, N. Wada, S. Takayanagi, M. Ishikawa, and　N. Mōri

J. Phys. Soc. Jpn.   69   667   2000.3

Quadrupolar pair interactions in RPd3S4 Reviewed

K. Abe, J. Kitagawa, N. Takeda, and M. Ishikawa

Physica B   281&282   597   2000

Evidence for strong quadrupolar pair interactions in rare-earth palladium bronzes RPd3S4 Reviewed

K. Abe, J. Kitagawa, N. Takeda, and M. Ishikawa

Phys. Rev. Lett.   83   5366   1999.12

Jahn-Teller-like phase transition of TmPd3S4 around 200K Reviewed

J. Kitagawa, E. Matsuoka, N. Takeda, and M. Ishikawa

Phys. Rev. B   60   R15028   1999.12

Effect of composition in (RE)3Pd20Ge6 (RE=La, Ce and Nd) Reviewed

J. Kitagawa, N. Takeda, F. Sakai, and M. Ishikawa

J. Phys. Soc. Jpn.   68   3413   1999.10

Magnetic properties and structural phase transition of CePd2Ga2 with CaBe2Ge2-type structure Reviewed

J. Kitagawa and M. Ishikawa

J. Phys. Soc. Jpn.   68   2380   1999.7

Anisotropic magnetic phase diagram of Ce3Pd20Ge6 with quadrupolar ordering

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, N. Kimura, and　T. Komatsubara

International Conference of Strongly Correlated Electron Systems (SCES 98, Paris, France)/Physica B   259-261   332   1999.1

Anisotropic Magnetic Phase Diagram of Kondo-Lattice Compound Ce3Pd20Ge6 with Quadrupolar Ordering Reviewed

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, N. Kimura and T. Komatsubara

Jpn. J. Appl. Phys.   11   197   1999

Anisotropic magnetic phase diagram of Ce3Pd20Ge6 with quadrupolar ordering Reviewed

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, N. Kimura, and T. Komatsubara

Physica B   259-261   332   1999

Suppression of antiferromagnetism by Kondo effect and quantum critical behavior in CeCoGe3-XSiX (0≦X≦3) Reviewed

D. Eom, M. Ishikawa, J. Kitagawa, and N. Takeda

J. Phys. Soc. Jpn.   67   2495   1998.7

Anisotropic magnetic phase diagram of the Kondo-lattice compound Ce3Pd20Ge6: observation of antiferromagnetic and quadrupolar ordering Reviewed

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, N. Kimura, and　T. Komatsubara

Phys. Rev. B   57   7450   1998.4

Low-temperature magnetic properties of (RE)3Pd20Si6 (RE=La to Yb) Reviewed

J. Kitagawa, N. Takeda, and M. Ishikawa

J. Alloys and Compounds   256   48   1997.7

Low-temperature magnetic properties of several compounds in Ce-Pd-X (X=Si, Ge and Al) ternary systems Reviewed

J. Kitagawa, Y. Muro, N. Takeda, and M. Ishikawa

J. Phys. Soc. Jpn.   66   2163   1997.7

Low-temperature specific heat of Ce3-XLaXPd20Si6

N. Takeda, J. Kitagawa, and M. Ishikawa

International Conference of Strongly Correlated Electron Systems (SCES 96, Zürich, Switzerland)/Physica B   230-232   145   1997.2

Possible quadrupolar ordering in a Kondo-lattice compound Ce3Pd20Ge6

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, and T. Komatsubara

International Conference of Strongly Correlated Electron Systems (SCES 96, Zürich, Switzerland)/Physica B   230-232   139   1997.2

Low-temperature specific heat of Ce3-XLaXPd20Si6 Reviewed

N. Takeda, J. Kitagawa, and M. Ishikawa

Physica B   230-232   145   1997

Possible quadrupolar ordering in a Kondo-lattice compound Ce3Pd20Ge6 Reviewed

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, and T. Komatsubara

Physica B   230-232   139   1997

Possible quadrupolar ordering in a Kondo-lattice compound Ce3Pd20Ge6 Reviewed

J. Kitagawa, N. Takeda, and M. Ishikawa

Phys. Rev. B   53   5101   1996.3

New heavy-electron system Ce3Pd20Si6 Reviewed

N. Takeda, J. Kitagawa, and M. Ishikawa

J. Phys. Soc. Jpn.   64   387   1995.2

Heavy-electron behavior in CePd3.8Al7.2 Reviewed

J. Kitagawa, N. Takeda, H. Sawa, and M. Ishikawa

J. Phys. Soc. Jpn.   63   1281   1994.4

酸廃液を出さないネオジム磁石からの希土類分離回収技術の開発

北川二郎、坪田雅己

ケミカルエンジニヤリング  2017.12 

テラヘルツ技術総覧

北川二郎

NGTコーポレーション  2007.11 

希土類の機能と応用

北川　二郎，高畠　敏郎

シーエムシー出版  2006.2 

テーパー型金属平行平板導波路におけるTHz波の結合効率と伝搬特性

西藤　勇作，児玉　光弘，北川　二郎，Damien Armand，角屋　豊

「テラヘルツ分光法の最先端V」シンポジウム～バイオテラヘルツ分光～   P-15   2011.9

Eu3Pd20Ge6の151Eu核共鳴非弾性散乱

筒井　智嗣，小林　康浩，東谷口　聡，瀬戸　誠，依田　芳卓，北川　二郎，高畠　敏郎

「短寿命核および放射線を用いた物性研究（II）」 専門研究会報告   76   2009.12

集積化ストリップラインデバイスとそのTHz-TDS応用

角屋　豊，北川　二郎，秋山　泰隆，大田　直人

電子情報通信学会技術研究報告   108 ( 369 )   7   2008.12

Terahertz spectroscopy by means of compact sensor chips

J. Kitagawa, Y. Akiyama, S. Yanagi, N. Ohta, M. Onuma, Y. Kadoya, K. Suekuni, and T. Takabatake

2nd Sungkyunkwan University-Hiroshima University Workshop On Advanced Materials Research (Suwon, Korea)   Prog.:09A03   2008.11

極限フォトニクスへの挑戦

角屋　豊，ホフマン　ホルガ，北川　二郎

「先端物質科学の世界」広島大学大学院 先端物質科学研究科 研究科設立１０周年記念出版   95   2008.11

光ファイバ結合型テラヘルツ分光ヘッドの開発

北川　二郎，秋山　泰隆，角屋　豊

テラヘルツ研究会「最近のテラヘルツ要素技術」広島大学   Prog.:10/11   2008.10

半導体超格子構造を用いたマイクロストリップ線路におけるサブピコ秒電気パルス増幅の研究

角屋　豊，北川　二郎

村田学術振興財団年報   20   228   2006.12

Terahertz time-domain spectroscopy of photoinduced carriers in YTiO3

J. Kitagawa, Y. Kadoya, M. Tsubota, F. Iga, and T. Takabatake

1st Hiroshima University-Sungkyunkwan University Workshop On Advanced Materials Research (Higashi-Hiroshima, Japan)   Prog.:17PS01   2006.11

THz waves as a probe for the carrier dynamics in matter

Y. Kadoya, J. Kitagawa, H. Harimochi, M. Ishizaka, T. Ohkubo, and M. Onuma

1st Hiroshima University-Sungkyunkwan University Workshop On Advanced Materials Research (Higashi-Hiroshima, Japan)   Prog.:16A01   2006.11

酸化物における電気伝導機構の超高速光制御に関する研究：新しいテラヘルツデバイスの開発を目指して

北川二郎，角屋豊

ANNUAL REPORT 2006 カシオ科学振興財団   68   2006.8

Spectroscopic characterization of liquid water/solute system using microstrip-line-based THz sensors

T. Ohkubo, J. Kitagawa, and Y. Kadoya

International Workshop on Terahertz Technology (TeraTech ’05 , Osaka, Japan)   Prog.:17PS-34   2005.11

近藤効果のテラヘルツ応答と超高速光制御に関する研究：超高速光近藤デバイスの実現可能性の模索

北川　二郎

先端研プロジェクト報告会（広島大学）   Prog.:3   2004.12

テラヘルツ帯電磁波分光技術の開発と応用模索

角屋　豊，山西　正道，北川　二郎

ハイテクインフォメーション   155   23   2004.7

テラヘルツ時間領域分光によるキャリアをドープした12CaO・7Al2O3の誘電応答の研究

石阪　昌大, 針持　裕之, 北川　二郎, 角屋　豊, 山西　正道, 松石　聡, 細野　秀雄

第１１回中国・四国・北九州地区誘電体セミナー　広島大学   Prog.:P2   2004.6

THz帯電磁波分光技術の開発と応用模索　第5回

角屋　豊，山西　正道，北川　二郎

第5回産学R&D「テラヘルツ帯電磁波分光技術」研究会　広島大学   Prog.:(1)   2004.2

全反射減衰法を中心としたテラヘルツ時間領域分光法における最近の展開

北川　二郎

第5回産学R&D「テラヘルツ帯電磁波分光技術」研究会　広島大学   Prog.:(2)   2004.2

テラヘルツ帯電磁波分光技術の開発と応用模索

角屋　豊，山西　正道，北川　二郎

ハイテクインフォメーション   147   45   2003.7

THz帯電磁波分光技術の開発と応用模索　第3回

角屋　豊，山西　正道，北川　二郎

第3回産学R&D「テラヘルツ帯電磁波分光技術」研究会　広島大学   Prog.:(1)   2003.3

THz帯電磁波分光技術の開発と応用模索　第2回

角屋　豊，山西　正道，北川　二郎

第2回産学R&D「テラヘルツ帯電磁波分光技術」研究会　三菱重工業（株）広島研究所   Prog.:(3)   2002.10

THz帯電磁波分光技術の開発と応用模索

角屋　豊，山西　正道，北川　二郎

第1回産学R&D「テラヘルツ帯電磁波分光技術」研究会　広島大学   Prog.:(4)   2002.7

Heterogeneous mixed-valence states in RPd3S4(R=Eu and Yb) viewed from thermopower, electrical resistivity and specific heat

J. Kitagawa, T. Takabatake, E. Matsuoka, F. Takahashi, K. Abe, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 3660 )   1 - 4   2002.2

Thermoelectric properties of valence-fluctuating Eu compound with a clathrate-like structure, Eu3Pd20Ge6

J. Kitagawa, T. Sasakawa, T. Suemitsu, T. Takabatake, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 3651 )   1 - 4   2001.12

Evidence of the quadrupolar ordering in DyPd3S4

E. Matsuoka, J. Kitagawa, K. Ohoyama, H. Yoshizawa, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 3612 )   1 - 5   2001.6

Powder neutron diffraction study on TbPd3S4 and YbPd3S4

E. Matsuoka, F. Takahashi, J. Kitagawa, K. Ohoyama, H. Yoshizawa, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 3582 )   1 - 5   2000.11

Magnetic and quadrupolar order in rare-earth palladium bronzes RPd3S4

K. Abe, J. Kitagawa, E. Matsuoka, N. Takeda, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 3531 )   1 - 12   1999.12

Quadrupolar order parameter and third-order magnetic susceptibility of Kondo-lattice compound Ce3Pd20Ge6

J. Kitagawa, N. Takeda, M. Ishikawa, M. Nakayama, N. Kimura, and T. Komatsubara

Technical Report of ISSP Ser.A   ( 3513 )   1 - 5   1999.10

Evidence for strong quadrupolar pair interactions in rare-earth palladium bronzes RPd3S4

K. Abe, J. Kitagawa, N. Takeda, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 3515 )   1 - 5   1999.10

Jahn-Teller-like phase transition of TmPd3S4 around 200K

J. Kitagawa, E. Matsuoka, N. Takeda, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 3514 )   1 - 4   1999.10

Muon(+)-SR investigation of the magnetic ordering in Ce3Pd20Ge6

V. V. Krishnamurthy, I. Watanabe, K. Nagamine, J. Kitagawa, M. Ishikawa, and T. Komatsubara

RIKEN Accelerator Progress Report   32   113   1999.3

Anisotropic magnetic phase diagram of Kondo-lattice compound Ce3Pd20Ge6 with quadrupolar ordering

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, N. Kimura, and T. Komatsubara

Jpn. J. Appl. Phys.   Series 11   197   1999.2

Anisotropic magnetic phase diagram of Ce3Pd20Ge6 with quadrupolar ordering

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, N. Kimura and T. Komatsubara

Technical Report of ISSP Ser.A   ( 3392 )   1 - 6   1998.6

Suppression of antiferromagnetism by Kondo effect and quantum critical behavior in CeCoGe3-xSix(0≦x≦3)

D. Eom, M. Ishikawa, J. Kitagawa, and N. Takeda

Technical Report of ISSP Ser.A   ( 3350 )   1 - 16   1998.2

Anisotropic magnetic phase diagram of the Kondo-lattice compound Ce3Pd20Ge6, showing antiferromagnetic and quadrupolar ordering

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, N. Kimura and T. Komatsubara

Technical Report of ISSP Ser.A   ( 3314 )   1 - 8   1997.10

Low-temperature magnetic properties of several compounds in Ce-Pd-X(X=Si, Ge and Al) ternary systems

J. Kitagawa, Y. Muro, N. Takeda, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 3240 )   1 - 20   1997.3

Low-temperature magnetic properties of (RE)3Pd20Si6(RE=La to Yb)

J. Kitagawa, N. Takeda, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 3198 )   1 - 19   1996.9

Possible quadrupolar ordering in a Kondo-lattice compound Ce3Pd20Ge6

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, and T. Komatsubara

Technical Report of ISSP Ser.A   ( 3170 )   1 - 8   1996.7

Possible quadrupolar ordering in a Kondo lattice compound Ce3Pd20Ge6

Technical Report of ISSP Ser.A

Technical Report of ISSP Ser.A   ( 3069 )   1 - 13   1995.10

New heavy-electron system Ce3Pd20Si6

N. Takeda, J. Kitagawa, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 2890 )   1 - 14   1994.10

Heavy-electron behavior in CePd3.8Al7.2

J. Kitagawa, N. Takeda, H. Sawa, and M. Ishikawa

Technical Report of ISSP Ser.A   ( 2785 )   1 - 13   1994.1

Characteristics of Spin-Thermoelectric Generation in the Generators Incorporating Liquid Phase Epitaxial Bi-Substituted Yttrium Iron Garnet Films under a Large Temperature Gradient International conference

M. Imamura, R. Matsuda, D. Tashima, J. Kitagawa, and H. Asada

International Conference on Magnetism 2024   2024.7 

共晶ハイエントロピー合金NbScTiZrの磁束ピン止め特性

上田　遥翔、西嵜　照和、上田　高佑、川崎　佑太、末吉　哲郎、関　武留、北川　二郎、加藤　勝、野島　勉、淡路　智、佐々木　孝彦

第71回応用物理学会春季学術講演会  2024.3 

共晶高エントロピー合金超伝導体NbScTiZrにおける熱処理効果

北川　二郎、関　武留、有馬　寛人、川崎　佑太、西嵜　照和、水口　佳一

日本物理学会　2024年春季大会  2024.3 

ハイエントロピー合金の磁場中超伝導特性―超伝導ハイエントロピー合金の Jc を高める方法―

西嵜　照和、川崎　佑太、末吉　哲郎、石津　直樹、関　武留、北川　二郎、加藤　勝、淡路　智、野島　勉、佐々木　孝彦

第29回渦糸物理ワークショップ 

共晶ハイエントロピー合金 NbScTiZr の臨界電流密度

上田　遥翔、上田　高佑、川崎　佑太、末吉　哲郎、西嵜　照和、関武　留、北川　二郎、加藤　勝、野島　勉、淡路　智、佐々木　孝彦

日本物理学会九州支部例会 

ハイエントロピー合金 (TaNb)0.7(ZrHfTi)0.3 の磁束ピン止め特性

川崎　佑太、西嵜　照和、末吉　哲郎、北川　二郎、石津　直樹、加藤　勝、野島　勉、淡路　智、佐々木　孝彦

日本物理学会九州支部例会 

ハイエントロピー合金(TaNb)0.7(ZrHfTi)0.3の微細組織構造と磁束ピン止め特性

西嵜　照和、川崎　佑太、末吉　哲郎、北川　二郎、石津　直樹、加藤　勝、淡路　智、野島　勉、佐々木　孝彦

日本物理学会　第78回年次大会 

Superconducting property in high-entropy alloy processed by high-pressure torsion Invited International conference

T. Nishizaki, Y. Kawasaki, T. Sueyoshi, N. Ishizu, J. Kitagawa, Y. Tang, Z. Horita, M. Kato, S. Awaji, T. Nojima, and T. Sasaki

International Conference on Processing & Manufacturing of Advanced Materials 

ハイエントロピー合金(TaNb)0.7(ZrHfTi)0.3の磁場中超伝導特性

川崎 佑太、西嵜 照和、末吉 哲郎、北川 二郎、石津 直樹、加藤 勝、野島 勉、淡路 智、佐々木 孝彦

第70回　応用物理学会　春季学術講演会 

高エントロピー合金超伝導体の新しい特徴について

北川　二郎、星　和久、川崎　佑太、古賀　陸生、水口　佳一、西嵜　照和

日本物理学会 2023年 春季大会 

Ti-Nb-Cr-Ru高エントロピー合金における強磁性の発見

北川　二郎、福田　匡起、福田　智史、藤木　健大、中村　悠希、西嵜　照和

日本物理学会 2023年 春季大会 

高圧ねじり加工されたハイエントロピー合金Hf21Nb25Ti15V15Zr24の超伝導特性

西嵜　照和、川崎　佑太、末吉　哲郎、北川　二郎、石津　直樹、唐　永鵬、堀田　善治、加藤　勝、淡路　智、野島　勉、佐々木　孝彦

日本物理学会 2023年 春季大会 

Underlying Mechanism of the Driving Force for Generating Spin Currents Thermally in a Ferrimagnetic Insulator Due to a Temperature Gradient International conference

M. Imamura, H. Asada, Y. Kano, R. Matsuda, D. Tashima, and J. Kitagawa

The 67th Annual Conference on Magnetism and Magnetic Materials 

Superconductivity and hardness of body-centered cubic high-entropy alloys Invited International conference

J. Kitagawa

Korean Physical Society Fall Meeting 2022, Pioneer Symposium on High Entropy Alloy and Other Novel Superconductors 

ハイエントロピー合金の磁場中における超伝導特性

川崎　佑太、西嵜　照和、末吉　哲郎、北川　二郎、石津　直樹、加藤　勝、野島　勉、淡路　智、佐々木　孝彦

2022年度　第30回電子情報通信会九州支部　学生会講演会 

超伝導ハイエントロピー合金(TaNb)0.7(ZrHfTi)0.3の臨界電流特性

西嵜　照和、川崎　佑太、河野　雄大、末吉　哲郎、北川　二郎、石津　直樹、加藤　勝、野島　勉、淡路　智、佐々木　孝彦

日本物理学会　第77回年次大会 Zoom  

新しい高エントロピー合金磁性体FeRhIrPdPt

北川　二郎、馬場　浩平、石津　直樹、西嵜　照和

日本物理学会　第77回年次大会 Zoom  

Materials Research on High-Entropy Alloy Superconductors Invited International conference

J. Kitagawa

Materials Research Meeting 2021 

ハイエントロピー合金Hf21Nb25Ti15V15Zr24の臨界電流密度と渦糸構造

西嵜　照和、北川　二郎、石津　直樹、末吉　哲郎、加藤　勝、野島　勉、淡路　智、 佐々木　孝彦

日本物理学会　秋季大会 Zoom 

ゴムメタル組成と高エントロピー合金組成を含んだAl-Nb-Ti-V-Zr合金における超伝導

北川　二郎、原山　雄多

日本物理学会　秋季大会 Zoom 

ハイエントロピ合金Hf21Nb25Ti15V15Zr24の磁場中超伝導特性

西嵜　照和、北川　二郎、石津　直樹、阿久根　忠博、野島　勉、淡路　智、佐々木　孝彦

日本物理学会　第76回年会 Zoom 

面心立方格子およびMn5Si3型高エントロピー合金超伝導体開発の試み

北川　二郎、石津　直樹、濱元　秀祐

日本物理学会　第76回年会 Zoom 

Enhancements of the spin Seebeck effect owing to the Bismuth-substitution in thermoelectric generators comprising an LPE Bi-substituted YIG film International conference

M. Imamura, H. Asada, R. Nishimura, K. Yamaguchi, D. Tashima, and J. Kitagawa

The 65th Annual Conference on Magnetism and Magnetic Materials  

Al8.5-xFe23Ge12.5+xにおける強磁性と反強磁性の競合

北川　二郎、矢賀部　弦太、中山　晃憲、西嵜　照和、坪田　雅己

日本物理学会　第75回年会 

マンガンおよび鉄化合物における非磁性元素の組成変化による磁性制御

北川　二郎、原　友博、中山　晃憲、矢賀部　弦太、西嵜　照和、白川　直樹、坪田　雅己

MRIS研究会 

マンガン化合物におけるボロン添加による室温強磁性誘起

北川　二郎、原　友博、坂口　航平、平野　史晃、白川　直樹、坪田　雅己

日本物理学会　秋季大会 

Superconductivity in Nb5Ir3-xPtxO

J. Kitagawa and S. Hamamoto

International conference on strongly correlated electron systems 2019  

Nbを含む高エントロピー合金超伝導物質の探索

石津　直樹、常岡　秀紀、北川　二郎

日本物理学会　秋季大会 

Al8.5-xFe23Ge12.5+xの磁性と伝導

北川　二郎、中山　晃憲、矢賀部　弦太、西嵜　照和

日本物理学会　秋季大会 

Emergence of room-temperature ferromagnetism in boron-added Mn compounds International conference

J. Kitagawa, T. Hara, K. Sakaguchi, N. Shirakawa, and M. Tsubota

Joint European Magnetic Symposia 2019 

Magneto-optical properties of wider gap magnetic semiconductor ZnMnTe and ZnMnSe films prepared by MBE International conference

M. Imamura, D. Tachima, J. Kitagawa, and H. Asada

EMN Epitaxy 2019 

Tb3Co3Gaにおける強磁性状態の組成依存性

北川　二郎、寺田　大崇、白川　直樹、坪田　雅己、野瀬　顕、田中　成弥

第35回希土類討論会 

光誘起近藤効果の探索

北川　二郎、片岡　大和、石橋　耕蓉、奥田　滉太、亀田　久司、山口　大輝

日本物理学会 第74回年次大会 

Pd0.75Mn0.25におけるボロン添加による室温強磁性誘起

北川　二郎、坂口　航平

日本物理学会九州支部例会 

福岡工業大学における電磁気学講義

北川二郎

日本物理学会　2018年秋季大会 

Zr5Pt3Oxにおける超伝導の研究

濱元秀祐、北川二郎

日本物理学会 2018年秋季大会 

Hill plot and magnetic properties of Ce2AuP3 International conference

J. Kitagawa, J. Miyahara, N. Shirakawa, Y. Setoguchi, M. Tsubota, K. Kuroiwa

International Conference on Magnetism 2018 

磁気転移温度が高いCe化合物に着目したHillプロットとCe2AuP3の磁性研究

北川二郎・宮原準也・白川直樹・坪田雅己・ 瀬戸口祐太・黒岩賢人

第34回希土類討論会 

R3Co3Ga (R=Nd, Gd, Tb)の合成と磁性

北川二郎、野瀬顕、白川直樹

第33回希土類討論会 

Illumination effect on superconductivity of bulk CeFeAsO0.65F0.35 International conference

J. Kitagawa, T. Yoshika, and N. Gonda

Rare Earths 2016 

CeZn3P3における光誘起近藤効果

北川二郎、北島大輝、下川顕治、高木宏人

日本物理学会 2015年秋季大会 

ネオジム磁石の水素化反応を利用したネオジムリサイクル技術

片岡　雄介、川本　蓉、坪田　雅己、北川　二郎

第31回希土類討論会 

Ce3Pd20P6の試料合成と基礎物性

安部太地、折田謙太郎、上西和登、島田祐樹、鬼丸孝博、坪田雅己、高畠敏郎、北川二郎

日本物理学会　第69回年次大会 

THz waveguide based on two dimensional metallic photonic crystals embedded in parallel plates

S. Koya, M. Kodama, D. Armand, J. Kitagawa, and Y. Kadoya

International Symposium on Frontiers in THz Technology (FTT2012, Nara, Japan, Nov.26-30, 2012)  

Horn antenna in THz regime International conference

D. Armand, Y. Nishifuji, J. Kitagawa, and Y. Kadoya

3rd European Optical Society Topical Meeting on Terahertz Science and Technology (TST 2012)  

Direct measurement of local THz electric field and its enhancement in the gap of dipole antennas International conference

S. Miyamoto, H. Tanaka, D. Armand, J. Kitagawa, and Y. Kadoya

3rd European Optical Society Topical Meeting on Terahertz Science and Technology (TST 2012) 

Photonic crystal between metallic parallel plates, effect of air gap on band structure International conference

S. Koya, D. Armand, M. Kodama, J. Kitagawa, and Y. Kadoya

3rd European Optical Society Topical Meeting on Terahertz Science and Technology (TST 2012) 

金属フォトニック結晶のTHz波伝搬特性

高野　真吾，児玉　光弘，西藤　勇作，Damien Armand，北川　二郎，角屋　豊

第59回応用物理学関係連合講演会 

フランツ・ケルディッシュ効果を用いたダイポールアンテナギャップにおけるTHz波電界の測定

宮本　真吾，田中　秀明，北川　二郎，Damien Armand，角屋　豊

第59回応用物理学関係連合講演会 

New design of terahertz metallic photonic crystal with mechanically tunable photonic -band-gap International conference

J. Kitagawa, M. Kodama, Y. Nishifuji, D. Armand, and Y. Kadoya

International Quantum Electronics/Laser and Electro-Optics Conference (IQEC/CLEO Pacific Rim 2011)  

高感度テラヘルツ分光のための分岐マイクロストリップ線路素子

大野　旭，北川　二郎，角屋　豊

応用物理学会中国四国支部学術講演会 

フォトニックバンドギャップが制御可能なTHz波金属フォトニック結晶

北川　二郎，児玉　光弘，西藤　勇作，Damien Armand，角屋　豊

第58回応用物理学関係連合講演会 

テーパー型金属平行平板導波路におけるTHz波の結合効率と伝搬特性

西藤　勇作，児玉　光弘，北川　二郎，Damien Armand，角屋　豊

第58回応用物理学関係連合講演会 

マイクロストリップスプリッターにおけるテラヘルツ波伝搬特性

大野　旭，佐藤　尚子，北川　二郎，角屋　豊

第58回応用物理学関係連合講演会 

Plasmon coupling and shaping on corrugated air-metal interface

Damien Armand，北川　二郎，角屋　豊

第58回応用物理学関係連合講演会 

低誘電率ポリマーを用いたTHz波フォトニック結晶の検討

児玉　光弘，北川　二郎，角屋　豊

第71回応用物理学会学術講演会 

Detection of THz waves by GaAs photoconductive antennas excited at 1560 nm with tight focusing International conference

Y. Kadoya, K. Kajikawa, T. Kataoka, and J. Kitagawa

20th International Conference on Applied Electromagnetics and Communications (ICECom) 

Enhancement of THz field in a gap of dipole antenna International conference

Y. Kadoya, H. Tanaka, Y. Sugitani, J. Kitagawa, F. Blanchard, H. Hirori, A. Doi, M. Nagai, and K. Tanaka

The 35th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2010) 

Efficient detection of THz pulses using low-temperature-grown GaAs photoconductive antennas excited at 1560 nm International conference

Y. Kadoya, K. Kajikawa, T. Kataoka, J. Kitagawa, and Y. Takemura

The 35th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2010) 

1560nmで励起した低温成長GaAs光伝導アンテナによるTHz波検出

梶川　敬介，片岡　丈，北川　二郎，角屋　豊，竹村　安弘

第71回応用物理学会学術講演会 

ストリップ線路と一体化したTHz近接場プローブの設計

刀祢　貴行，北川　二郎，角屋　豊

第70回応用物理学会学術講演会 

Design of THz near-field probes integrated on printed striplines International conference

T. Tone, J. Kitagawa, and Y. Kadoya

The 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009) 

Propagation of THz pulses on microstrip discontinuities International conference

N. Sato, J. Kitagawa, and Y. Kadoya

The 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009) 

マイクロストリップ線路の不連続点におけるTHzパルス伝搬特性の測定

佐藤　尚子，北川　二郎，角屋　豊

第70回応用物理学会学術講演会 

Propagation of terahertz pulses on polymer-based coplanar striplines International conference

N. Ohta, S. Yanagi, M. Onuma, J. Kitagawa, and Y. Kadoya

Asia Pacific Microwave Conference 2008 (APMC 2008) 

マイクロストリップ線路の不連続点におけるTHzパルスの伝搬特性

佐藤　尚子，北川　二郎，角屋　豊

第69回応用物理学会学術講演会 

光ファイバ結合型THz分光チップの開発

秋山　泰隆，北川　二郎，角屋　豊

第55回応用物理学関係連合講演会 

THzコプレーナストリップ線路の広帯域化：光伝導スイッチ作製条件の見直し

大田　直人，大沼　匡之，北川　二郎，角屋　豊

日本大学 

THz fingerprint spectra detected by sensor chips based on coplanar strip-lines made on low-permittivity plastic substrate International conference

J. Kitagawa, S. Yanagi, M. Onuma, and Y. Kadoya

The Joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics (IRMMW/THz 2007) 

THz wave propagation on strip lines: devices, properties, and applications International conference

Y. Kadoya, M. Onuma, S. Yanagi, T. Ohkubo, N. Sato, and J. Kitagawa

19th International Conference on Applied Electromagnetics and Communications (ICECom) 

Fiber-coupled sensor chip based on micro-strip-line working in THz regime International conference

J. Kitagawa, Y. Akiyama, M. Onuma, and Y. Kadoya

The Joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics (IRMMW/THz 2007) 

Terahertz transmission property of quadrupole electric field in three-strip coplanar transmission-line on low-permittivity substrate International conference

M. Onuma, J. Kitagawa, and Y. Kadoya

The Joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics (IRMMW/THz 2007) 

InGaAs photodiodes as an emitter of THz waves for 1560 nm pulse excitation International conference

Y. Kadoya, T. Matsui, A. Takazato, and J. Kitagawa

The Joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics (IRMMW/THz 2007) 

InGaAs photoconductive antennas for THz emission and detection with 1.56 μm excitation International conference

A. Takazato, T. Matsui, J. Kitagawa, and Y. Kadoya

2007 Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS '07) 

1.56 μm帯パルスレーザー励起による低温成長InGaAs光導電アンテナからのTHz電磁波発生と検出

高里　明洋，鎌倉　匡史，北川　二郎，角屋　豊，斗内　政吉

第54回応用物理学関係連合講演会 

低誘電率基板上のコプレーナストリップ線路におけるTHz波伝搬特性

大沼　匡之，柳　真路，北川　二郎，角屋　豊

第54回応用物理学関係連合講演会 

テラヘルツ時間領域分光法によるモット絶縁体YTiO3とバンド半導体Siにおける光誘起キャリアの光学特性評価

北川　二郎，角屋　豊，坪田　雅己，伊賀　文俊，高畠　敏郎

日本物理学会　秋季大会 

Terahertz time-domain spectroscopy of photoinduced carriers in YTiO3 International conference

J. Kitagawa, Y. Kadoya, M. Tsubota, F. Iga, and T. Takabatake

The Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics (IRMMW/THz 2006) 

THz spectroscopic performance comparison between micro-strip-line based sensing methods and attenuated total reflection International conference

M. Onuma, T. Ohkubo, J. Kitagawa, and Y. Kadoya

The Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics (IRMMW/THz 2006) 

Generation and detection of THz waves by 1.55 μm pulse excitation of InGaAs photoconductive antennas International conference

Y. Kadoya, A. Takazato, M. Kamakura, and J. Kitagawa

The Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics (IRMMW/THz 2006)  

マイクロストリップ線路型THz分光チップの性能評価

大沼　匡之，大久保　徹也，北川　二郎，角屋　豊

第67回応用物理学会学術講演会 

Terahertz time-domain spectroscopy of photoinduced carriers in YTiO3 International conference

J. Kitagawa, Y. Kadoya, M. Tsubota, F. Iga, and T. Takabatake

International Conference on Magnetism (ICM2006) 

Characterization of liquid water containing bio-molecules using micro-strip-line THz sensors International conference

Y. Kadoya, T. Ohkubo, and J. Kitagawa

2006 Conference on Lasers and Electro-Optics/ Quantum Electronics and Laser Science Conference (CLEO/QELS 2006) 

Generation and detection of THz waves using InGaAs photoconductive antenna with 1.55 μm excitation International conference

Y. Kadoya, M. Kamakura, A. Takasato, and J. Kitagawa

2006 Conference on Lasers and Electro-Optics/ Quantum Electronics and Laser Science Conference (CLEO/QELS 2006) 

1.55 μm帯パルスレーザー励起による低温成長InGaAs光導電アンテナからのTHz電磁波発生と検出

高里　明洋，鎌倉　匡史，北川　二郎，角屋　豊，鈴木　正人，斗内　政吉

第53回応用物理関係連合講演会 

YTiO3における光誘起状態のテラヘルツ時間領域分光法による光学特性評価

北川　二郎，角屋　豊，坪田　雅己，伊賀　文俊，高畠　敏郎

日本物理学会　第61回年次大会 

マイクロストリップ線路型THz分光チップにおける極性溶液の分析

大沼　匡之，大久保　徹也，北川　二郎，角屋　豊

第53回応用物理関係連合講演会 

極性液体測定のためのマイクロストリップ線路型THz分光チップの開発

大沼　匡之，大久保　徹也，北川　二郎，角屋　豊

第53回応用物理関係連合講演会 

1.05 μmパルスレーザー励起による低温成長InGaAs光伝導アンテナからのTHz電磁波放射

鎌倉　匡史，小迫　照和，北川　二郎，角屋　豊，斎藤　伸吾，東海林　篤

第52回応用物理学関係連合講演会 

反射型THz時間領域分光法による12CaO・7Al2O3(C12A7)の誘電応答の研究

石阪　昌大，北川　二郎，角屋　豊，松石　聡，宮川　仁，細野　秀雄

日本物理学会　第60回年次大会 

マイクロストリップ線路型THz分光チップの検討

大久保　徹也，高瀬　功介，石元　健輝，北川　二郎，角屋　豊

第52回応用物理学関係連合講演会 

Pressure induced Kondo coherence effect in Ce2Pd3Si5 International conference

M. Abliz, M. Hedo, J. Kitagawa, Y. Uwatoko, and M. Ishikawa

Rare Earths 04 

低温成長InGaAs上光伝導アンテナからのTHz電磁波放射

鎌倉　匡史，小迫　照和，北川　二郎，角屋　豊

第65回応用物理学会学術講演会 

THz time-domain ATR spectroscopy of heavy fermion compounds International conference

J. Kitagawa, Y. Sato, Y. Kadoya, M. Yamanishi, F. Iga, and T. Takabatake

The Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW/THz 2004) 

THz time-domain spectroscopy of 12CaO・7Al2O3 (C12A7) containing hopping carriers International conference

J. Kitagawa, M. Ishizaka, H. Harimochi, Y. Kadoya, M. Yamanishi, S. Matsuishi, and H. Hosono

The Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW/THz 2004) 

Transmission properties of microstrip lines made of optically transparent conductors in THz regime International conference

Y. Kadoya, K. Takase, T. Ohkubo, D. Nagayama, J. Kitagawa, and M. Yamanishi

The Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW/THz 2004) 

THz-時間領域分光法による近藤半導体の重い電子状態の観測

佐藤　嘉高，応和　春香，北川　二郎，角屋　豊，伊賀　文俊，高畠　敏郎

日本物理学会　秋季大会 

導電性酸化物12CaO・7Al2O3(C12A7)におけるTHz領域複素電気伝導度の温度依存性

石阪　昌大，北川　二郎，角屋　豊，松石　聡，細野　秀雄

日本物理学会　秋季大会 

裏面光学コンタクト型THzマイクロストリップ線路の試作

大久保　徹也，澤田　太志，石元　健輝，高瀬　功介，片岡　伸介，石川　隆一，北川　二郎，角屋　豊

第65回応用物理学会学術講演会 

ITOを電極としたマイクロストリップ線路におけるサブピコ秒電圧パルスの伝搬特性

高瀬　功介，長山　大樹，綿谷　研一，大久保　徹也，北川　二郎，角屋　豊，山西　正道

第51回応用物理学関係連合講演会 

THz-時間領域分光法によるCeNiSnの複素電気伝導度測定

佐藤　嘉高，北川　二郎，角屋　豊，山西　正道，高畠　敏郎

日本物理学会　第59回年次大会  

キャリアがドープされた12CaO・7Al2O3(C12A7)のTHz時間領域分光

石阪　昌大，針持　裕之，北川　二郎，角屋　豊，山西　正道，松石　聡，細野　秀雄

日本物理学会　第59回年次大会 

単線導波路におけるサブピコ秒電圧パルス伝搬特性

長山　大樹，綿谷　研一，北川　二郎，角屋　豊，山西　正道

第51回応用物理学関係連合講演会 

THz electrical signal propagation waveguided by a single metallic line International conference

D. Nagayama, K. Okita, Y. Kadoya, J. Kitagawa, and M. Yamanishi

The 28th International Conference on Infrared and Millimeter Waves (IRMMW2003) 

THz電気信号発生のためのバルクGaAs用表面保護処理方法の検討

綿谷　研一，長山　大樹，角屋　豊，北川　二郎，山西　正道

第64回応用物理学会学術講演会 

Optical characterization of n-type AlXGa1-XAs alloys with DX center by THz time-domain spectroscopy International conference

H. Harimochi, J. Kitagawa, Y. Kadoya, and M. Yamanishi

11th International Conference on Terahertz Electronics (THz2003) 

THz時間領域分光法によるn型AlxGa1-xAs薄膜のキャリアダイナミクス評価

針持　裕之，北川　二郎，角屋　豊，山西　正道

第64回応用物理学会学術講演会 

半導体光伝導スイッチにおけるTHz電気信号発生に関わるキャリアダイナミクス

加藤　豪，今田　桂輔，角屋　豊，北川　二郎，山西　正道

第64回応用物理学会学術講演会 

マイクロストリップ線路におけるサブピコ秒電圧パルスの発生

長山　大樹，沖田　恭子，角屋　豊，北川　二郎，山西　正道

第50回応用物理学関係連合講演会 

厚い基板を用いたマイクロストリップ線路におけるサブピコ秒電圧パルスモード

長山　大樹，沖田　恭子，角屋　豊，北川　二郎，山西　正道

第50回応用物理学関係連合講演会 

Thermoelectric properties of Ce-based Kondo semimetals and semiconductors International conference

T. Takabatake, T. Sasakawa, J. Kitagawa, T. Suemitsu, Y. Echizen, K. Umeo, M. Sera, and Y. Bando

The 2nd Hiroshima Workshop Transport and Thermal Properties of Advanced Materials (T2 PAM '02) 

Anisotropic thermoelectric properties of CeRhAs with superstructures International conference

T. Takabatake, T. Suemitsu, T. Sasakawa, J. Kitagawa, K. Umeo, M. Nakajima, K. Iwasa, and M. Kohgi

International Conference on Strongly Correlated Electron Systems (SCES02) 

かご状化合物Eu3Pd20Ge6の熱電物性

北川　二郎，笹川　哲也，末光　敏明、高畠　敏郎，石川　征靖

日本物理学会　第57回年次大会 

DyPd3S4における軌道縮退効果

松岡　英一，北川　二郎，石川　征靖

日本物理学会　第56回年次大会 

希土類パラジウムブロンズRPd3S4における軌道縮退効果

石川　征靖，安倍　和夫，北川　二郎，武田　直也

日本物理学会　秋の分科会 

希土類パラジウムブロンズRPd3S4における磁気秩序と四重極秩序

北川　二郎，安倍　和夫，武田　直也，石川　征靖

日本物理学会　秋の分科会 

Ce3Pd20Ge6における結晶場効果と三次の帯磁率

北川　二郎，武田　直也，石川　征靖，吉田　俊也，石黒　晶子，木村　憲彰，小松原　武美

日本物理学会　秋の分科会  

Quadrupolar pair interactions in RPd3S4(R=rare earths) International conference

K. Abe, J. Kitagawa, N. Takeda, and M. Ishikawa

International Conference of Strongly Correlated Electron Systems (SCES 99) 

(RE)3Pd20Ge6 (RE=Ce, Nd)の試料依存性

北川　二郎，武田　直也，坂井　富美子，石川　征靖

日本物理学会　第54回年次大会 

CeCoGe3-xSixのCo-NMR/NQR

大谷　哲幸，川崎　祐，石田　憲二，北岡　良雄，石川　征靖，厳　斗和，北川　二郎，武田　直也

日本物理学会　第54回年次大会 

CeCoGe3-xSixのCo-NMR/NQR

大谷　哲幸，川崎　祐，石田　憲二，北岡　良雄，石川　征靖，厳　斗和，北川　二郎，武田　直也

日本物理学会　秋の分科会 

C6Cr23型化合物の低温物性

北川　二郎，武田　直也，石川　征靖

：日本物理学会　秋の分科会  

Anisotropic magnetic phase diagram of Ce3Pd20Ge6 with quadrupolar ordering International conference

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, N. Kimura, and T. Komatsubara

International Conference of Strongly Correlated Electron Systems (SCES 98) 

Ce3Pd20Ge6の磁場中比熱III

北川　二郎，武田　直也，石川　征靖，吉田　俊也，石黒　晶子，佐藤　憲昭，小松原　武美

日本物理学会　秋の分科会 

Ce3Pd20Ge6の磁場中比熱II

北川　二郎，武田　直也，石川　征靖，吉田　俊也，石黒　晶子，佐藤　憲昭，小松原　武美

日本物理学会　第52回年次大会 

CeCoGe3-xSixにおける反強磁性状態と価数揺動状態

厳　斗和，北川　二郎，武田　直也，石川　征靖

日本物理学会　第52回年次大会 

Ce3Pd20Ge6の磁場中比熱

北川　二郎，武田　直也，石川　征靖，吉田　俊也，石黒　晶子，佐藤　憲昭，小松原　武美

日本物理学会　秋の分科会 

Possible quadrupolar ordering in a Kondo-lattice compound Ce3Pd20Ge6 International conference

J. Kitagawa, N. Takeda, M. Ishikawa, T. Yoshida, A. Ishiguro, and T. Komatsubara

International Conference of Strongly Correlated Electron Systems (SCES 96) 

Low-temperature specific heat of Ce3-XLaXPd20Si6 International conference

N. Takeda, J. Kitagawa, and M. Ishikawa

International Conference of Strongly Correlated Electron Systems (SCES 96) 

Ce3Pd20Ge6の低温物性

北川　二郎，武田　直也，石川　征靖

日本物理学会　秋の分科会 

近藤格子系Ce3Pd20Si6の比熱の圧力効果

橋口　強，武田　直也，北川　二郎，和田　信雄，高柳　滋，石川　征靖，毛利　信男

日本物理学会　秋の分科会 

RE3Pd20Si6の低温物性

北川　二郎，武田　直也，石川　征靖

日本物理学会　第50回年次大会 

(La1-xCex)3Pd20Si6の磁性と伝導

武田　直也，北川　二郎，石川　征靖

日本物理学会　第50回年次大会 

CePd3.8Al7.2の低温物性

北川　二郎，武田　直也，石川　征靖，川野　はづき，吉沢　英樹

日本物理学会　秋の分科会 

Ce-Pd-Al 3元系の物質探索

北川　二郎，武田　直也，澤　博，石川　征靖

日本物理学会　第49回年次大会 

Ce3Pd20Ge6の低温物性と異方的な磁気相図

新潟大学物性コロキウム  1998.5 

ハイエントロピー合金超伝導体・磁性体の探索

日本磁気学会第243回研究会/第72回化合物新磁性専門研究会  2023.7 

Superconductivity and hardness of body-centered cubic high-entropy alloys International conference

Korean Physical Society Fall Meeting 2022, Pioneer Symposium on High Entropy Alloy and Other Novel Superconductors  2022.10 

新しい高エントロピー合金超伝導体・磁性体の探索

新物質研究会2022  2022.3 

Materials Research on High-Entropy Alloy Superconductors

Materials Research Meeting 2021 (MRM2021)  2021.12 

光誘起近藤効果の探索

福岡工業大学　土曜日談話会  2018.8 

新しい光機能性をもつ希土類化合物の開発

2015旭硝子財団助成研究発表会  2015.7 

物質開発・探索の魅力―新奇な物理現象や機能性を求めて―

京都産業大学物理科学科セミナー  2009.12 

テラヘルツ分光技術と生体関連物質への応用

広島大学量子情報生命国際プロジェクト研究センター内セミナー  2007.11 

材料分析・評価のためのテラヘルツ分光ヘッド

JSTイノベーションブリッジ広島大学研究発表会  2007.10 

非ドルーデ型電気伝導体のテラヘルツ分光

第52回応用物理学会　シンポジウム「テラヘルツ波による化学・バイオ・電子材料評価の最前線」埼玉大学  2005.3 

テラヘルツ分光と電子輸送

東京工業大学応用セラミックス研究所　第16回セミナー  2005.3 

Ce3Pd20Ge6における四重極子秩序

広島大学物性セミナー  2001.7 

レアアース化合物の開発

2014

その他補助金  福岡工業大学　エレクトロニクス研究所　研究員

希土類磁石からのレアメタル分離回収の研究

2013 - 2017

共同研究 

新しい光機能性をもつ希土類化合物の開発

2013 - 2014

その他補助金  旭硝子財団　研究奨励費

新しい光機能性をもつ希土類化合物の開発

2012

その他補助金  福岡工業大学　エレクトロニクス研究所　研究員

高強度テラヘルツ光による究極的分光技術開拓と物性物理学への展開

2009 - 2011

その他補助金  科学技術振興機構　CREST（種別II）受託研究

固体伝送線路を用いた広帯域テラヘルツ分光チップの高機能化に関する研究

2007 - 2008

科研費  若手研究(B)

固体素子におけるテラヘルツ電気信号と光波の相互変調

2005 - 2007

科研費  基盤研究(B)

半導体超格子構造を用いたマイクロストリップ線路におけるサブピコ秒電気パルス増幅の研究

2005

その他補助金  村田学術振興財団　研究助成

近藤効果を動作原理にもつ次世代超高速光磁気デバイスの基礎的研究

2004 - 2005

科研費  若手研究(B)

酸化物における電気伝導機構の超高速光制御に関する研究：新しいテラヘルツデバイスの開発を目指して

2004

その他補助金  カシオ科学振興財団　研究助成

光通信技術に適合したテラヘルツ波センシングシステムの開発

2003 - 2007

その他補助金  総務省　戦略的情報通信研究開発　受託研究

量子井戸マイクロストリップ線路におけるサブピコ秒電界パルス伝搬の速度制御

2003 - 2004

科研費  基盤研究(C)

近藤効果のテラヘルツ応答と超高速光制御に関する研究：超高速光近藤デバイスの実現可能性の模索

2003

その他補助金  広島大学大学院　先端物質科学研究科　先端研プロジェクト

超高速光エレクトロニクスとその固体物性研究への応用

2003

その他補助金  C&C振興財団　若手研究員助成

テラヘルツ帯電磁波分光技術の開発と応用模索

2002 - 2003

その他補助金  中国技術振興センター　産学R&D推進受託研究

微小共振器中のコヒーレントチャージダイポールによるTHz電気信号の発生

2000 - 2002

科研費  基盤研究(A)

Ce3Pd20Ge6における相転移の機構解明と四重極子に関連した物質探索

1998 - 2000

科研費  特別研究員奨励費

「電磁気学における反転講義」：北川　二郎　福岡工業大学　「FD Annual Report AL特集号」pp.38-44 (2018)

2017

第32回物理教育研究大会実行委員会の活動記録：副島　雄児、小島　健太郎、田尾　周一郎、佐合　紀親、松井　淳、江藤　徹二郎、巨海　玄道、落合　道夫、北川　二郎、越地　尚宏、柴崎　幸貴、寺田　貢、中村　賢仁、野田　常雄、日本物理教育学会九州支部会報　九州の物理教育 vol.2 pp.7-16 (2016)

2015

2023   Introduction to Fundamentals of

2023   Graduation Study

2023   Advanced Fundamentals of Electrical

2022   Introduction to Electrical Engineering

2022   Electromagnetism II

2022   Electromagnetism I

2022   Elementary Electric Experiment

2022   Electromagnetism Ⅲ

2022   Introduction to Fundamentals of

2022   Graduation Study

2022   Advanced Fundamentals of Electrical

2021   Electromagnetism II

2021   Introduction to Electrical Engineering

2021   Electromagnetism I

2021   Elementary Electric Experiment

2021   Electromagnetism Ⅲ

2021   Introduction to Fundamentals of

2021   Graduation Study

2021   Advanced Fundamentals of Electrical

2020   Introduction to Electrical Engineering

2020   Electromagnetism I

2020   Electromagnetism II

2020   Elementary Electric Experiment

2020   Electromagnetism Ⅲ

2020   Introduction to Fundamentals of

2020   Graduation Study

2020   Advanced Fundamentals of Electrical

2019   Introduction to Electrical Engineering

2019   Electromagnetism I

2019   Electromagnetism II

2019   Elementary Electric Experiment

2019   Electromagnetism Ⅲ

2019   Graduation Study

2019   Training for International Conference

2019   Research Study for Master's Thesis in

2018   Introduction to Electrical Engineering

2018   Electromagnetism I

2018   Electromagnetism II

2018   Elementary Electric Experiment

2018   Electromagnetism III

2018   Graduation Study

2018   Seminar on Fundamentals of Electrical

2018   Advanced Fundamentals of Electrical

2018   Research Study for Master's Thesis in

2017   Introduction to Electrical Engineering

2017   Electromagnetism I

2017   Electromagnetism II

2017   Electromagnetism III

2017   Elementary Electric Experiment

2017   Graduation Study

2017   Training for International Conference

2017   Advanced Fundamentals of Electrical

2016   Electromagnetism II

2016   Introduction to Electrical Engineering

2016   Electromagnetism I

2016   Elementary Electric Experiment

2016   Electromagnetism III

2016   Graduation Study

2016   Advanced Lectures on Applied Electrical