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Strain effects on in-plane conductance of the topological insulator Bi2Te3 SCIE SCOPUS

Title
Strain effects on in-plane conductance of the topological insulator Bi2Te3
Authors
Hwang, JHKwon, SPark, JKim, JHLee, JKim, JSLyeo, HKPark, JY
Date Issued
2014-04-21
Publisher
AMER INST PHYSICS
Abstract
We investigated the correlation between electrical transport and mechanical stress in a topological insulator, Bi2Te3, using conductive probe atomic force microscopy in an ultrahigh vacuum environment. After directly measuring charge transport on the cleaved Bi2Te3 surface, we found that the current density varied with applied load. Current mapping revealed a variation of the current on different terraces. The current density increased in the low-pressure regime and then decreased in the high-pressure regime. This variation of current density was explained in light of the combined effect of changes in the in-plane conductance due to spin-orbit coupling and hexagonal warping. (C) 2014 AIP Publishing LLC.
URI
https://oasis.postech.ac.kr/handle/2014.oak/9785
DOI
10.1063/1.4873389
ISSN
0003-6951
Article Type
Article
Citation
APPLIED PHYSICS LETTERS, vol. 104, no. 16, 2014-04-21
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