Topological transition in Bi 1-xSb x studied as a function of Sb doping

Fumitaka Nakamura; Yuka Kousa; Alexey A. Taskin; Yasuo Takeichi; Akinori Nishide; Akito Kakizaki; Marie D'Angelo; Patrick Lefevre; Francois Bertran; Amina Taleb-Ibrahimi; Fumio Komori; Shin Ichi Kimura; Hiroshi Kondo; Yoichi Ando; Iwao Matsuda

doi:10.1103/PhysRevB.84.235308

Topological transition in Bi _1-xSb _x studied as a function of Sb doping

Fumitaka Nakamura
, Yuka Kousa
, Alexey A. Taskin
, Yasuo Takeichi
, Akinori Nishide
, Akito Kakizaki
, Marie D'Angelo
, Patrick Lefevre
, Francois Bertran
, Amina Taleb-Ibrahimi
, Fumio Komori
, Shin Ichi Kimura
, Hiroshi Kondo
, Yoichi Ando
, Iwao Matsuda

化学科

研究成果: Article › 査読

38 被引用数 (Scopus)

抄録

Spin- and angle-resolved photoemission spectroscopy measurements were performed on Bi _1-xSb _x samples at x=0.04, 0.07, and 0.21 to study the change of the surface band structure from nontopological to topological. Energy shift of the T and L _s bulk bands with Sb concentration is quantitatively evaluated. An edge state becomes topologically nontrivial at x=0.04. An additional trivial edge state appears at the L band gap that forms at x0.04 and apparently hybridize with the nontrivial edge state. A scenario for the topological transition mechanism is presented. Related issues of self-energy and temperature dependence of the surface state are also considered.

本文言語	English
論文番号	235308
ジャーナル	Physical Review B - Condensed Matter and Materials Physics
巻	84
号	23
DOI	https://doi.org/10.1103/PhysRevB.84.235308
出版ステータス	Published - 2011 12月 6

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学

文献へのアクセス

10.1103/PhysRevB.84.235308

他のファイルとリンク

引用スタイル

Nakamura, F., Kousa, Y., Taskin, A. A., Takeichi, Y., Nishide, A., Kakizaki, A., D'Angelo, M., Lefevre, P., Bertran, F., Taleb-Ibrahimi, A., Komori, F., Kimura, S. I., Kondo, H., Ando, Y., & Matsuda, I. (2011). Topological transition in Bi _1-xSb _x studied as a function of Sb doping. Physical Review B - Condensed Matter and Materials Physics, 84(23), 記事 235308. https://doi.org/10.1103/PhysRevB.84.235308

Nakamura, F, Kousa, Y, Taskin, AA, Takeichi, Y, Nishide, A, Kakizaki, A, D'Angelo, M, Lefevre, P, Bertran, F, Taleb-Ibrahimi, A, Komori, F, Kimura, SI, Kondo, H, Ando, Y & Matsuda, I 2011, 'Topological transition in Bi _1-xSb _x studied as a function of Sb doping', Physical Review B - Condensed Matter and Materials Physics, vol. 84, no. 23, 235308. https://doi.org/10.1103/PhysRevB.84.235308

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abstract = "Spin- and angle-resolved photoemission spectroscopy measurements were performed on Bi 1-xSb x samples at x=0.04, 0.07, and 0.21 to study the change of the surface band structure from nontopological to topological. Energy shift of the T and L s bulk bands with Sb concentration is quantitatively evaluated. An edge state becomes topologically nontrivial at x=0.04. An additional trivial edge state appears at the L band gap that forms at x0.04 and apparently hybridize with the nontrivial edge state. A scenario for the topological transition mechanism is presented. Related issues of self-energy and temperature dependence of the surface state are also considered.",

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AB - Spin- and angle-resolved photoemission spectroscopy measurements were performed on Bi 1-xSb x samples at x=0.04, 0.07, and 0.21 to study the change of the surface band structure from nontopological to topological. Energy shift of the T and L s bulk bands with Sb concentration is quantitatively evaluated. An edge state becomes topologically nontrivial at x=0.04. An additional trivial edge state appears at the L band gap that forms at x0.04 and apparently hybridize with the nontrivial edge state. A scenario for the topological transition mechanism is presented. Related issues of self-energy and temperature dependence of the surface state are also considered.

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