M
Mohammad Saeed Bahramy
Researcher at University of Tokyo
Publications - 111
Citations - 6949
Mohammad Saeed Bahramy is an academic researcher from University of Tokyo. The author has contributed to research in topics: Topological insulator & Superconductivity. The author has an hindex of 33, co-authored 98 publications receiving 5600 citations. Previous affiliations of Mohammad Saeed Bahramy include Global Alliance in Management Education & University of Manchester.
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Superconducting Dome in a Gate-Tuned Band Insulator
TL;DR: A large enhancement in the transition temperature Tc occurring at optimal doping in the chemically inaccessible low–carrier density regime is revealed, indicating that the superconducting dome may arise even in doped band insulators.
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Giant Rashba-type spin splitting in bulk BiTeI
Kyoko Ishizaka,Mohammad Saeed Bahramy,H. Murakawa,M. Sakano,Takahiro Shimojima,T. Sonobe,K. Koizumi,Shik Shin,Hirokazu Miyahara,Akio Kimura,Koji Miyamoto,Taichi Okuda,Hirofumi Namatame,Masaki Taniguchi,Masaki Taniguchi,Ryotaro Arita,Naoto Nagaosa,Kensuke Kobayashi,Youichi Murakami,Reiji Kumai,Reiji Kumai,Yoshio Kaneko,Yoshinori Onose,Yoshinori Tokura +23 more
TL;DR: The finding of a huge spin-orbit interaction effect in a polar semiconductor composed of heavy elements, BiTeI, where the bulk carriers are ruled by large Rashba-likespin splitting is described, confirming that the spin splitting is indeed derived from bulk atomic configurations.
Journal ArticleDOI
Zeeman-type spin splitting controlled by an electric field
Hongtao Yuan,Hongtao Yuan,Mohammad Saeed Bahramy,Mohammad Saeed Bahramy,K. Morimoto,Sanfeng Wu,Kentaro Nomura,Kentaro Nomura,Bohm-Jung Yang,Hidekazu Shimotani,Hidekazu Shimotani,Ryuji Suzuki,Minglin Toh,Christian Kloc,Xiaodong Xu,Ryotaro Arita,Ryotaro Arita,Naoto Nagaosa,Naoto Nagaosa,Yoshihiro Iwasa,Yoshihiro Iwasa +20 more
TL;DR: In this paper, it was shown that spin polarization can also be achieved without the need for magnetism by using the unique crystal symmetry of tungsten selenide, which creates a Zeeman-like effect when a monolayer of the material is exposed to an external electric field.
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Superconductivity protected by spin-valley locking in ion-gated MoS2
Yu Saito,Yasuharu Nakamura,Yasuharu Nakamura,Mohammad Saeed Bahramy,Mohammad Saeed Bahramy,Yoshimitsu Kohama,Jianting Ye,Yuichi Kasahara,Yuji Nakagawa,Masaru Onga,Masashi Tokunaga,Tsutomu Nojima,Youichi Yanase,Youichi Yanase,Yoshihiro Iwasa,Yoshihiro Iwasa +15 more
TL;DR: In this paper, the electric field-induced superconductivity in molybdenum disulphide (MoS2) was investigated by means of magneto-transport measurements, uncovering evidence of spin-momentum locking.
Journal ArticleDOI
Direct observation of spin-polarized bulk bands in an inversion-symmetric semiconductor
J. M. Riley,Federico Mazzola,Maciej Dendzik,Matteo Michiardi,T. Takayama,T. Takayama,L. Bawden,Cecilie Skjold Granerød,M. Leandersson,Thiagarajan Balasubramanian,Moritz Hoesch,Timur K. Kim,Hidenori Takagi,Hidenori Takagi,Worawat Meevasana,Ph. Hofmann,Mohammad Saeed Bahramy,Mohammad Saeed Bahramy,Justin W. Wells,Phil D. C. King +19 more
TL;DR: In this article, the spin and angle-resolved photo-emission spectroscopy of spin-polarized bulk states in the centrosymmetric transition-metal dichalcogenide WSe has been used to show how spin splittings up to ∼ 0.5 eV result, with a spin texture that is strongly modulated in both real and momentum space.