研究業績

【学術論文】

Tunneling spectroscopy of the superconductor-insulator transition on Bi₂Sr₂Ca_1-xY_xCu₂O₈₊_d and (Bi_1-yPb_y)₂Sr₂Ca_1-xY_xCu₂O₈₊_d, Q. T. Meng, S. Komaki, T. Tsuneoka, H. Hanada, S. Maeda, T. Murano, F. Ichikawa, K. Itoh, Y. Nishisako, I. Shigeta, M. Hiroi, IEEE Transactions on Applied Superconductivity 24 (2014) 7000504(1)-(4).
Substitution effects in the antiferromagnetic Heusler compound Ru₂CrSi, M. Hiroi, T. Higashiuchi, T. Ogawa, I. Shigeta, M. Ito, H. Manaka, N. Terada, JPS Conference Proceedings 3 (2014) 014024(1)-(6).
Study on the half-Heusler compounds Co₁₊_dTiSb with excess cobalt, H. Suwa, S. Nishiinoue, K. Koseki, I. Shigeta, M. Ito, M. Hiroi, Hirotaka Manaka, Norio Terada, JPS Conference Proceedings 3 (2014) 017017(1)-(6).
Magneto-transport properties in the Heusler compounds Ru_2-xFe_xCrSi (0 ≦ x ≦ 0.1), S. Nishiinoue, H. Suwa, I. Shigeta, M. Hiroi, K. Koyama, S. Kimura, K. Watanabe, M. Fujii, JPS Conference Proceedings 3 (2014) 017018(1)-(6).
Fabrication and measurement of high-temperature superconductor YBa₂Cu₃O_7-_d: Activity report of science club, I. Shigeta, Y. Nishisako, S. Urakawa, O. Murayama, M. Ito, M. Hiroi, JPS Conference Proceedings 1 (2014) 017013(1)-(4).
Spin polarization measurements of Heusler alloy Ru_0.2Fe_1.8CrSi by Andreev reflection technique, I. Shigeta, Y. Maeda, K. Harumori, Y. Nishisako, M. Ito, T. Yamauchi, M. Hiroi, IEEE Transactions on Magnetics 50 (2014) 1401304(1)-(4).
Muon spin relaxation study of spin-glass freezing in the Heusler compound Ru_1.9Fe_0.1CrSi, M. Hiroi, T. Hisamatsu, T. Suzuki, K. Ohishi, Y. Ishii, I. Watanabe, Physical Review B 88 (2013) 024409(1)-(5).
High-field magnetization measurements of Fe₂MnSi, T. Sakon, K. Koyama, O. Kamiya, S. Awaji, S. Nakamura, T. Nojima, H. Nojiri, K. Watanabe, M. Hiroi, Journal of the Physical Society of Japan 82 (2013) 044802(1)-(4)
Thermodynamic and transport properties of Ru_2-xFe_xCrSi (1.3 ≦ x ≦ 1.8), M. Ito, T. Hisamatsu, T. Rokkaku, O. Murayama, I. Shigeta, M. Hiroi, Journal of the Korean Physical Society 62 (2013) 2063-2067.
Antiferromagnetic Transition in Ru2CrSi in Magnetic Fields, M. Hiroi, K. Uchida, I. Shigeta, M. Ito, K. Koyama, S. Kimura, K. Watanabe, Journal of the Korean Physical Society 62 (2013) 2068-2072.
Transport and magnetic properties of fully epitaxial superconducting NbN/half-metallic Heulser alloy Co₂MnSi bilayer flms, I. Shigeta, Y. Sakuraba, S. Kimura, K. Koyama, K. Watanabe, K. Takanashi, M. Hiroi, Journal of the Magnetics Society of Japan 37 (2013) 222-226.
Magnetization and spin polarization of Co_2-xFe_xMnSi Heusler alloys, I. Shigeta, S. Urakawa, M. Ito, M. Hiroi, Journal of Physics: Conference Series 400 (2012) 032082(1)-(5).
Spin polarized conductance in ferromagnet / insulator / conventional superconductor junctions, I. Shigeta, Y. Tanaka, A. A. Golubov, M. Hiroi, Journal of Physics: Conference Series 400 (2012) 032083(1)-(4).
Spin-glass and antiferromagnetic transition in Ru_2-xFe_xCrSi, M. Hiroi, H. Ko, S. Nakashima, I. Shigeta, M. Ito, H. Manaka, N. Terada, Journal of Physics: Conference Series 400 (2012) 032020(1)-(4).
Substitution effect on the magnetic transitions of Fe₂MnSi, M. Hiroi, I. Yano, K. Sezaki, I. Shigeta, M. Ito, H. Manaka, N. Terada, Journal of Physics: Conference Series 400 (2012) 032021(1)-(4).
Spin polarization of Fe-rich ferromagnetic compounds in Ru_2-xFe_xCrSi Heusler alloys, I. Shigeta, O. Murayama, T. Hisamatsu, A. Brinkman, A. A. Golubov, Y. Tanaka, M. Ito, H. Hilgenkamp, M. Hiroi, Journal of Physics and Chemistry of Solids 72 (2011) 604-607.
Magnetic properties of Ru-rich Ru_2-xFe_xCrZ (Z = Si, Ge), M. Hiroi, S. Nakashima, K. Nakao, T. Rokkaku, M. Ito, I. Shigeta, H. Manaka, N. Terada, Journal of Superconductivity and Novel Magnetism 24 (2011) 753-756.
Transport properties of Heusler compound Ru_2-xFe_xCrSi under pressure, M. Ito, T. Hisamatsu, S. Nakashima, I. Shigeta, K. Matsubayashi, Y. Uwatoko, M. Hiroi, Journal of Physics: Conference Series 266 (2011) 012011(1)-(4).
Measurements of spin polarization of Ru_2-xFe_xCrSi Heusler alloys by Andreev reflection, I. Shigeta, O. Murayama, T. Hisamatsu, M. Ito, M. Hiroi, Physica C 470 (2010) S806-S807.
Effect of spin fluctuations on charge transport in diffusive normal metal / d-wave superconductor junctions, I. Shigeta, T. Yokoyama, Y. Asano, M. Hiroi, Y. Tanaka, Physica C 470 (2010) S854-S856.
Low-temperature magnetic properties of Heusler compounds Ru_2-xFe_xCrSi (x = 0.1, 0.3, and 0.5) , M. Ito, T. Hisamatsu, T. Rokkaku, I. Shigeta, H. Manaka, N. Terada, M. Hiroi, Physical Review B 82 (2010) 024406(1)-(7).
Ferromagnetism and spin-glass transitions in the Heusler compounds Ru_2-xFe_xCrSi, M. Hiroi, T. Rokkaku, K. Matsuda, T. Hisamatsu, I. Shigeta, M. Ito, T. Sakon, K. Koyama, K. Watanabe, S. Nakamura, T. Nojima, T. Nakano, L. Chen, T. Fujiwara, Y. Uwatoko, H. Manaka, N. Terada, Physical Review B 79 (2009) 224423(1)-(10).