Anisotropic magnetoresistance in topological insulator Bi 1.5Sb0.5Te1.8Se1.2/CoFe heterostructures

Xia, B, Ren, P, Sulaev, A, Li, Z, Liu, P, Dong, Z and Wang, L 2012, 'Anisotropic magnetoresistance in topological insulator Bi 1.5Sb0.5Te1.8Se1.2/CoFe heterostructures', AIP Advances, vol. 2, no. 4, 042171, pp. 1-11.

Document type: Journal Article
Collection: Journal Articles

Title Anisotropic magnetoresistance in topological insulator Bi 1.5Sb0.5Te1.8Se1.2/CoFe heterostructures
Author(s) Xia, B
Ren, P
Sulaev, A
Li, Z
Liu, P
Dong, Z
Wang, L
Year 2012
Journal name AIP Advances
Volume number 2
Issue number 4
Article Number 042171
Start page 1
End page 11
Total pages 11
Publisher American Institute of Physics
Abstract Topological insulator is composed of an insulating bulk state and time reversal symmetry protected two-dimensional surface states. One of the characteristics of the surface states is the locking between electron momentum and spin orientation. Here, we report a novel in-plane anisotropic magnetoresistance in topological insulator Bi1.5Sb 0.5Te1.8Se1.2/CoFe heterostructures. To explain the novel effect, we propose that the Bi1.5Sb0.5Te 1.8Se1.2/CoFe heterostructure forms a spin-valve or Giant magnetoresistance device due to spin-momentum locking. The novel in-plane anisotropic magnetoresistance can be explained as a Giant magnetoresistance effect of the Bi1.5Sb0.5Te1.8Se 1.2/CoFe heterostructures.
Subject Electronic and Magnetic Properties of Condensed Matter; Superconductivity
DOI - identifier 10.1063/1.4769894
Copyright notice © 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License.
ISSN 2158-3226
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
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