Zobrazeno 1 - 10
of 138
pro vyhledávání: '"Hisashi Kotegawa"'
Autor:
Hisashi Kotegawa, Yoshiki Kuwata, Vu Thi Ngoc Huyen, Yuki Arai, Hideki Tou, Masaaki Matsuda, Keiki Takeda, Hitoshi Sugawara, Michi-To Suzuki
Publikováno v:
npj Quantum Materials, Vol 8, Iss 1, Pp 1-7 (2023)
Abstract Specific antiferromagnetic (AF) spin configurations generate large anomalous Hall effects (AHEs) even at zero magnetic field through nonvanishing Berry curvature in momentum space. In addition to restrictions on AF structures, suitable contr
Externí odkaz:
https://doaj.org/article/5e7864adfadc4e3da71db0f0fd111614
Autor:
Hisashi Kotegawa, Masaki Fujita
Publikováno v:
Science and Technology of Advanced Materials, Vol 13, Iss 5, p 054302 (2012)
Nuclear magnetic resonance and neutron scattering experiments in iron chalcogenide superconductors are reviewed to make a survey of the magnetic excitations in FeSe, FeSe1−xTex and alkali-metal-doped AxFe2−ySe2 (A = K, Rb, Cs, etc). In FeSe, the
Externí odkaz:
https://doaj.org/article/6e2e6fdcb1e541838d923acc5fee2118
Autor:
Kazuyuki Omasa, Takuya Komoda, Yusuke Nakamura, Eiichi Matsuoka, Hisashi Kotegawa, Hideki Tou, Takahiro Sakurai, Hitoshi Ohta, Ai Nakamura, Yoshiya Homma, Dai Aoki, Daisuke Satoh, Mitsuhiro Yoshida, Sanu Mishra, Ilya Sheikin, Hisatomo Harima, Hitoshi Sugawara
Publikováno v:
Journal of the Physical Society of Japan; 3/15/2024, Vol. 93 Issue 3, p1-6, 6p
Autor:
Yuya Nagase, Masahiro Manago, Junichi Hayashi, Keiki Takeda, Hideki Tou, Eiichi Matsuoka, Hitoshi Sugawara, Hisatomo Harima, Hisashi Kotegawa
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::314af7097d1963e1bf3efc4345f8176c
https://doi.org/10.1103/physrevb.107.104512
https://doi.org/10.1103/physrevb.107.104512
Autor:
Christian Paulsen, Jutta Kösters, Stefan Seidel, Yoshiki Kuwata, Hisashi Kotegawa, Hideki Tou, Hitoshi Sugawara, Hisatomo Harima, Rainer Pöttgen
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 237:27-37
The equiatomic metal-rich phosphide NbCrP shows a structural phase transition around 125 K. The structures of the high- and low-temperature modifications were refined from single crystal X-ray diffractometer data of an un-twinned crystal: TiNiSi type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c48ab19eed2081b9667e070023ba14b9
https://doi.org/10.1515/zkri-2021-2058
https://doi.org/10.1515/zkri-2021-2058
Cubic CeZn shows a structural phase transition under pressure, and it modifies the ground state from an antiferromagnetic (AFM) state to a ferromagnetic (FM) state. To investigate how the FM state terminates at a quantum phase transition, we measured
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c838cecfe355a287cdab3558563cf57e
http://arxiv.org/abs/2211.13401
http://arxiv.org/abs/2211.13401
Autor:
Masaaki Matsuda, Depei Zhang, Hitoshi Ohta, Takahiro Sakurai, Qiang Zhang, Keiki Takeda, Hisashi Kotegawa, Hitoshi Sugawara, Yoshiki Kuwata, Junichi Hayashi
Publikováno v:
Physical Review B. 104
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2f25bd24dbcbba12aaa5682df0d231f
https://doi.org/10.1103/physrevb.104.174413
https://doi.org/10.1103/physrevb.104.174413
Autor:
Paul C. Canfield, Yuji Furukawa, Hisashi Kotegawa, R. R. Ullah, Sergey L. Bud'ko, Elena Gati, Hideki Tou, Valentin Taufour, Khusboo Rana
Publikováno v:
Physical Review B. 103
LaCrGe${}_{3}$ is a unique itinerant ferromagnet that exhibits an avoided ferromagnetic quantum critical point (QCP) under pressure. This occurs due to a change in the order of the phase transition as well as through a new high-pressure magnetic stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::effd803d0e13486da15bd366582d2f34
https://doi.org/10.1103/physrevb.103.174426
https://doi.org/10.1103/physrevb.103.174426
Publikováno v:
Journal of the Physical Society of Japan. 90
We performed $^{59}$Co nuclear magnetic and quadrupole resonance (NMR and NQR) measurements under pressure on a single-crystalline CeCoSi, which undergoes an unresolved phase transition at $T_0$. The NQR spectra clearly showed that the phase transiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c4abfe4bbee4e06a6315b40af94785a
http://ir.lib.shimane-u.ac.jp/53846
http://ir.lib.shimane-u.ac.jp/53846
Autor:
Ryoma Miyake, Ryuji Higashinaka, Tetsuro Kubo, Hideyuki Sato, Akihiro Nakama, Hideki Tou, Haruki Matsuno, Yuji Aoki, Hisashi Kotegawa, Hisatomo Harima, Yoshihiko Ihara, Michihiro Hirata, Takahiko Sasaki, Takayuki Goto
Publikováno v:
Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00c7d32d7b16f9c6833ae69a6903fd05
https://doi.org/10.7566/jpscp.30.011158
https://doi.org/10.7566/jpscp.30.011158