Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Mitsuhiro Akatsu"'
Autor:
Shin-ichi Shamoto, Mitsuhiro Akatsu, Masato Matsuura, Seiko Ohira-Kawamura, Kazuya Harii, Masao Ono, Lieh-Jeng Chang, Takashi U. Ito, Yuichi Nemoto, Jun'ichi Ieda
Publikováno v:
Physical Review Research, Vol 4, Iss 1, p 013245 (2022)
Ultrasound injection effect on a magnetic Bragg peak of yttrium iron garnet has been studied by quasielastic neutron scattering. The magnetic Bragg peak is vastly enhanced with decreasing temperature. The energy width increases proportionally to the
Externí odkaz:
https://doaj.org/article/2ff7aa72080246d5a1f8a566a62e84c6
Autor:
Shin-ichi Shamoto, Yukio Yasui, Masato Matsuura, Mitsuhiro Akatsu, Yoshiaki Kobayashi, Yuichi Nemoto, Jun'ichi Ieda
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033235 (2020)
Ultralow-lying magnon energy spectrum in yttrium iron garnet (YIG) has been studied by inelastic neutron scattering in an energy range from 10 to 45 μeV. When a magnetic field of approximately 0.1 T was applied along [111] direction, ultralow-energy
Externí odkaz:
https://doaj.org/article/bb00700817874a8692ed3088673bb4f4
Autor:
Masato Matsuura, Jun'ichi Ieda, Yukio Yasui, Yoshiaki Kobayashi, Yuichi Nemoto, Mitsuhiro Akatsu, Shin-ichi Shamoto
Publikováno v:
Physical Review Research. 2
The authors observe the closure of the Zeeman energy gap in yttrium iron garnet at low temperature, using high-energy-resolution inelastic neutron scattering when a magnetic field of approximately 0.1 T is applied along [111] direction.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9176e2f0794eb157f715183d30b9119e
https://doi.org/10.1103/physrevresearch.2.033235
https://doi.org/10.1103/physrevresearch.2.033235
Autor:
Masatoshi Sato, Yoshiaki Kobayashi, Keisuke Mitsumoto, Ryosuke Kurihara, Mitsuhiro Akatsu, Haruyasu Sato, Yuichi Nemoto, Terutaka Goto
Publikováno v:
Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9297809abd6687dbfae11a39ed0cecf4
https://doi.org/10.7566/jpscp.30.011052
https://doi.org/10.7566/jpscp.30.011052
Autor:
Shin-ichi Shamoto, In Yong Hwang, Kazuhiko Ikeuchi, Hiroki Yamauchi, Kee Hwan Lee, V. Ovidiu Garlea, Mitsuhiro Akatsu, Jae Ho Chung
Publikováno v:
Journal of the Physical Society of Japan. 90:064708
Using inelastic neutron scattering, we investigate the spin wave excitations on the antiferromagnetic MnTiO3 (TN = 65 K), which has the stacked honeycomb structure. At T = 2 K, the spin wave energy...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b61734b7cc85fd5c21476995f86433cb
https://doi.org/10.7566/jpsj.90.064708
https://doi.org/10.7566/jpsj.90.064708
Autor:
Yuichi Nemoto, Yoshiaki Kobayashi, Ryosuke Kurihara, Masatoshi Sato, Mitsuhiro Akatsu, Keisuke Mitsumoto, Terutaka Goto
Ultrasonic measurements have been carried out to investigate the critical dynamics of structural and superconducting transitions due to degenerate orbital bands in iron pnictide compounds with the formula Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$. The attenuati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::821e3a07ec2611ae875ef3f8a044166c
http://arxiv.org/abs/1705.10057
http://arxiv.org/abs/1705.10057
Autor:
Taketo Moyoshi, Kaoru Shibata, Katsuaki Kodama, Koji Munakata, Mitsutaka Nakamura, Hiroki Yamauchi, Masato Matsuura, Takashi Ohhara, Shin-ichi Shamoto, Seiko Ohira-Kawamura, Takashi U. Ito, Akiko Nakao, Yasuhiro Inamura, Hiroaki Onishi, Yuichi Nemoto, Mitsuhiro Akatsu
The nuclear and magnetic structure and full magnon dispersions of yttrium iron garnet Y$_3$Fe$_5$O$_{12}$ have been studied by neutron scattering. The refined nuclear structure is distorted to a trigonal space group of $R\bar{3}$. The highest-energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26530a55da159c701869208a4ca60385
http://arxiv.org/abs/1705.02167
http://arxiv.org/abs/1705.02167
Autor:
Hiroyuki Saito, Shotaro Baba, Yoshihiko Saito, Hiroshi Yamada-Kaneta, K. Mitsumoto, Terutaka Goto, Kazuhiko Kashima, Yuichi Nemoto, Mitsuhiro Akatsu, Kazuki Okabe
Publikováno v:
ECS Transactions. 64:13-18
For the samples taken from the void region of the CZ silicon crystal grown with the same solidification condition and different thermal histories after the solidification, we measure the magnitude S of the elastic softening which is proportional to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b32a53b2d4dd897ddcac96e2c7477ad0
https://doi.org/10.1149/06411.0013ecst
https://doi.org/10.1149/06411.0013ecst
Autor:
Yuichi Nemoto, Mitsuhiro Akatsu, Shotaro Baba, Terutaka Goto, Hiroshi Yamada-Kaneta, Yuta Nagai, Satoru Komatsu
Publikováno v:
Materials Science Forum. 725:217-220
For the B-doped silicon crystals grown with and without N-doping, we measured the temperature dependence of the elastic constant in low-temperature region, to examine whether the N-doping annihilates the elastic softening caused by the gap-states of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b03f590ccf0cde258a2e5fb9e01a00a7
https://doi.org/10.4028/www.scientific.net/msf.725.217
https://doi.org/10.4028/www.scientific.net/msf.725.217
Autor:
Hiroshi Yamada-Kaneta, Shotaro Baba, H. Watanabe, Yuichi Nemoto, Mitsuhiro Akatsu, Terutaka Goto, Yuta Nagai
Publikováno v:
Solid State Phenomena. :135-138
We confirm the following findings obtained in our previous experiment for the low-temperature elastic softening by the vacancies in boron-doped silicon crystals: (1) the steep softening that suddenly starts at 2-4 K in the cooling process, and (2) th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14e43a6014c52d33a3fb0de17d1a0c94
https://doi.org/10.4028/www.scientific.net/ssp.156-158.135
https://doi.org/10.4028/www.scientific.net/ssp.156-158.135