Frustrated quantum magnets and their ground states
Unconventional superconductivity with spin-orbit couplings and strong correlations
Hydrogen roles in wide-gap semiconductors
Characterization of carrier motion and density via the Li β-NMR in semiconductors
Selected Publications
Y. Ishii, S. Horio, Y. Noda, M. Hiraishi*, H. Okabe, M. Miyazaki*, S. Takeshita, A. Koda, K. M. Kojima, R. Kadono, H. Sagayama, H. Nakao, Y. Murakami, and H. Kimura. Electronic charge transfer driven by spin cycloidal structure. Phys. Re. B. 101, 224436 (2020).
M. Hiraishi*, K. M. Kojima, H. Okabe, S. Takeshita, A. Koda, R. Kadono, R. Khasanov, S. Iimura, S. Matsuishi, and H. Hosono. Magnetism driven by strong electronic correlations in the heavily carrierdoped iron oxypnictide LaFeAsO0.49H0.51. Phys. Rev. B. 101: 174414(1-7) (2020).
K.M. Kojima, M. Hiraishi, H. Okabe, A. Koda, R. Kadono, K. Ide, S. Matsuishi, H. Kumomi, T. Kamiya, H. Hosono. Electronic structure of interstitial hydrogen in In-Ga-Zn-O semiconductor simulated by muon. Appl. Phys. Lett. 115, 122104 (2019).
N. Funamori, K.M. Kojima, D. Wakabayashi, T. Sato, T. Taniguchi, N. Nishiyama, T. Irifune, D. Tomono, T. Matsuzaki, M. Miyazaki, M. Hiraishi, A. Koda, R. Kadono. Muonium in Stishovite: Implications for the Possible Existence of Neutral Atomic Hydrogen in the Earth’s Deep Mantle. Sci. Rep. 5, 8437 (2015).
M. Hiraishi, S. Iimura, K.M. Kojima, J. Yamaura, H. Hiraka, K. Ikeda, P. Miao, Y. Ishikawa, S. Torii, M. Miyazaki, I. Yamauchi, A. Koda, K. Ishii, M. Yoshida, J. Mizuki, R. Kadono, R. Kumai, T. Kamiyama, T. Otomo, Y. Murakami, S. Matsuishi, H. Hosono. Bipartite magnetic parent phases in the iron oxypnictide superconductor. Nat. Phys. 10, 300 (2014).
