Observation of a highly spin-polarized topological surface state in GeBi2Te4

Physical Review B 86 巻 19 号 195304- 頁 2012 発行
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タイトル ( eng )
Observation of a highly spin-polarized topological surface state in GeBi2Te4
作成者
Okamoto Kazuaki
Kuroda Kenta
Miyahara Hirokazu
Aliev Z. S.
Babanly M. B.
Amiraslanov I. R.
Samorokov D. A.
Menshchikova T. V.
Chulkov E. V.
収録物名
Physical Review B
86
19
開始ページ 195304
抄録
Spin polarization of a topological surface state for GeBi2Te4, the newly discovered three-dimensional topological insulator, has been studied by means of state-of-the-art spin- and angle-resolved photoemission spectroscopy. It has been revealed that the disorder in the crystal has a minor effect on the surface-state spin polarization, which is 70% near the Dirac point in the bulk energy gap region (∼180 meV). This finding promises not only to realize a highly spin-polarized surface-isolated transport but also to add functionality to its thermoelectric and thermomagnetic properties.
NDC分類
物理学 [ 420 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2012
権利情報
(c) 2012 American Physical Society
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.86.195304
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.86.195304