Observation of a highly spin-polarized topological surface state in GeBi2Te4
Use this link to cite this item : https://ir.lib.hiroshima-u.ac.jp/00033912
ID | 33912 |
file | |
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.
|
NDC |
Physics
|
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.
|
journal title |
Physical Review B
|
volume | Volume 86
|
issue | Issue 19
|
start page | 195304
|
date of issued | 2012
|
publisher | American Physical Society
|
issn | 1098-0121
|
ncid | |
publisher doi | |
language |
eng
|
nii type |
Journal Article
|
HU type |
Journal Articles
|
DCMI type | text
|
format | application/pdf
|
text version | publisher
|
rights | (c) 2012 American Physical Society
|
relation url | |
department |
Graduate School of Science
Hiroshima Synchrotron Radiation Center
|