Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Takehito, Yokoyama"'
Autor:
Takehito Yokoyama
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-4 (2021)
Abstract Transverse current due to Berry curvature in phase space is formulated based on the Boltzmann equations with the semiclassical equations of motion for an electron wave packet. It is shown that the Hall effect due to the phase space Berry cur
Externí odkaz:
https://doaj.org/article/63e9fbca101043c7b59b0f8184b3d19c
We study tunnel transport between the edge of a Pfaffian fractional quantum Hall state and that of an integer quantum Hall state. Based on the duality argument between strong and weak tunnelings, we find that Andreev-like reflection appears for a str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65c0d2103daacd5dd497e8a3a329c44a
http://arxiv.org/abs/2208.03336
http://arxiv.org/abs/2208.03336
We investigate the proximity effect in an s-wave superconductor/ferromagnetic metal with a Rashba spin-orbit coupling/diffusive normal metal junction and an s-wave superconductor/noncollinear magnetic metal/diffusive normal metal junction. We show th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de8342f903af4f3a765a7c016d367fa7
Autor:
Takehito Yokoyama
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-4 (2021)
Scientific Reports
Scientific Reports
Transverse current due to Berry curvature in phase space is formulated based on the Boltzmann equations with the semiclassical equations of motion for an electron wave packet. It is shown that the Hall effect due to the phase space Berry curvature is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0625ae67b220e604dfe0dbd628d2e2cb
http://arxiv.org/abs/2002.08162
http://arxiv.org/abs/2002.08162
Autor:
Takehito Yokoyama, Ryo Okugawa
Publikováno v:
Physical Review B. 99
We study a topological band degeneracy in non-Hermitian systems with parity-time ($PT$) and parity-particle-hole ($CP$) symmetries. In $d$-dimensional non-Hermitian systems, it is shown that $(d-1)$-dimensional exceptional surfaces can appear from ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::428dc91db8c15440e9bea558c84f87c4
https://doi.org/10.1103/physrevb.99.041202
https://doi.org/10.1103/physrevb.99.041202
Autor:
Takehito Yokoyama
Publikováno v:
New Journal of Physics, Vol 16, Iss 8, p 085005 (2014)
We study spin and valley transports in junctions composed of silicene and topological crystalline insulators. We consider normal/magnetic/normal Dirac metal junctions where a gate electrode is attached to the magnetic region. In a normal/antiferromag
Externí odkaz:
https://doaj.org/article/cf4b4db817cc4b1f909387d1266f8d17
Autor:
Takehito Yokoyama
Publikováno v:
Journal of the Physical Society of Japan. 89:103703
We investigate a superconducting state irradiated by a laser beam with spin and orbital angular momentum. It is shown that superconducting vortices are created by the laser beam due to heating effect and transfer of angular momentum of light. Possibl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91b4a36986a55dd6f8ba5628398d6918
https://doi.org/10.7566/jpsj.89.103703
https://doi.org/10.7566/jpsj.89.103703
Autor:
Taiki Yoda, Emi Minamitani, Masato Hamada, Shuichi Murakami, Motoaki Hirayama, Takehito Yokoyama
Publikováno v:
Spintronics XI.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a2126e014297e583a4584a1e23c72ed
https://doi.org/10.1117/12.2323431
https://doi.org/10.1117/12.2323431
Autor:
Shin Ichi Nakashiba, Yasuhiro Okamoto, Akira Okada, Tomokazu Sakagawa, Norio Nishi, Takehito Yokoyama
Publikováno v:
Journal of the Japan Society for Precision Engineering. 81:1033-1038
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::729517fb334b90708ab002ee8d1182d8
https://doi.org/10.2493/jjspe.81.1033
https://doi.org/10.2493/jjspe.81.1033
We theoretically study current-induced orbital magnetization in a chiral crystal. This phenomenon is an orbital version of the Edelstein effect. We propose an analogy between the current-induced orbital magnetization and an Amp\`ere field in a soleno
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c4b99e3085910f0fcd46d718eca0a14
http://arxiv.org/abs/1706.07702
http://arxiv.org/abs/1706.07702