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

Physical Review B Volume 86 Issue 19 Page 195304- published_at 2012
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Title ( eng )
Observation of a highly spin-polarized topological surface state in GeBi2Te4
Creator
Okamoto Kazuaki
Kuroda Kenta
Miyahara Hirokazu
Aliev Z. S.
Babanly M. B.
Amiraslanov I. R.
Samorokov D. A.
Menshchikova T. V.
Chulkov E. V.
Source Title
Physical Review B
Volume 86
Issue 19
Start Page 195304
Abstract
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
Physics [ 420 ]
Language
eng
Resource Type journal article
Publisher
American Physical Society
Date of Issued 2012
Rights
(c) 2012 American Physical Society
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.86.195304
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.86.195304