T
T. Sonobe
Researcher at University of Tokyo
Publications - 10
Citations - 1160
T. Sonobe is an academic researcher from University of Tokyo. The author has contributed to research in topics: Brillouin zone & Superconductivity. The author has an hindex of 7, co-authored 10 publications receiving 987 citations.
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Journal ArticleDOI
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
Lifting of xz / yz orbital degeneracy at the structural transition in detwinned FeSe
Takahiro Shimojima,Yasuhiro Suzuki,T. Sonobe,A. Nakamura,M. Sakano,J. Omachi,Kosuke Yoshioka,Makoto Kuwata-Gonokami,Kanta Ono,Hiroshi Kumigashira,Anna E. Böhmer,Frédéric Hardy,T. Wolf,Christoph Meingast,Hilbert von Löhneysen,Hiroaki Ikeda,Kyoko Ishizaka +16 more
TL;DR: In this article, superconducting FeSe was studied using angle-resolved photo-emission spectroscopy and shown to exhibit the tetragonal-orthorhombic structural transition.
Journal ArticleDOI
Momentum-dependent sign inversion of orbital order in superconducting FeSe
Yasuhiro Suzuki,Takahiro Shimojima,T. Sonobe,A. Nakamura,M. Sakano,H. Tsuji,J. Omachi,Kosuke Yoshioka,Makoto Kuwata-Gonokami,Tatsuya Watashige,Ryo Kobayashi,Shigeru Kasahara,Takasada Shibauchi,Yuji Matsuda,Youichi Yamakawa,Hiroshi Kontani,Kyoko Ishizaka +16 more
TL;DR: In this article, the authors investigated the electronic reconstruction across the tetragonal-orthorhombic structural transition in FeSe by employing polarization-dependent angle-resolved photoemission spectroscopy on detwinned single crystals.
Journal ArticleDOI
Pseudogap formation above the superconducting dome in iron-pnictides
Takahiro Shimojima,T. Sonobe,Walid Malaeb,K. Shinada,Ashish Chainani,Shik Shin,Teppei Yoshida,S. Ideta,Atsushi Fujimori,Hiroshi Kumigashira,Kanta Ono,Y. Nakashima,Hiroaki Anzai,Masashi Arita,Akihiro Ino,Hirofumi Namatame,Masaki Taniguchi,Masamichi Nakajima,Masamichi Nakajima,S. Uchida,Yasuhide Tomioka,Toshimitsu Ito,K. Kihou,C. H. Lee,Akira Iyo,Hiroshi Eisaki,Kenya Ohgushi,Shigeru Kasahara,Takahito Terashima,Hiroaki Ikeda,Takasada Shibauchi,Yuji Matsuda,Kyoko Ishizaka +32 more
TL;DR: In this article, the existence of the pseudogap (PG) phase via angle-resolved photoemission spectroscopy in another family of high superconductor, iron pnictides, was shown.
Journal ArticleDOI
Three-dimensional bulk band dispersion in polar BiTeI with giant Rashba-type spin splitting
M. Sakano,Jun Miyawaki,Ashish Chainani,Y. Takata,T. Sonobe,Takahiro Shimojima,Masaki Oura,Shik Shin,Mohammad Saeed Bahramy,Ryotaro Arita,Ryotaro Arita,Naoto Nagaosa,H. Murakawa,Yoshio Kaneko,Y. Tokura,Kyoko Ishizaka,Kyoko Ishizaka +16 more
TL;DR: In this paper, the authors investigated the 3D bulk band structures of BiTeI using the bulk-sensitive soft x-ray angle-resolved photoemission spectroscopy (SX-ARPES).