Interface of topological insulator Bi2Se3 with As2Te3

被引：0

作者：

Aryal, Niraj ^{[1
,2
]}

Manousakis, Efstratios ^{[1
,2
,3
]}

机构：

[1] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[2] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

[3] Univ Athens, Dept Phys, Athens 15784, Greece

来源：

30TH WORKSHOP ON RECENT DEVELOPMENTS IN COMPUTER SIMULATION STUDIES IN CONDENSED MATTER PHYSICS | 2017年 / 921卷

关键词：

SINGLE DIRAC CONE;

D O I：

10.1088/1742-6596/921/1/012014

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the topological states which appear at the interface of the topological insulator (TI) Bi2Se3 with Bi2Se3 which share similar size lattice constants. A Dirac-like state (DLS) with spin-momentum correlations characteristic to an edge Dirac-like state of a TI, forms at the interface. While our parity analysis shows that one should not expect a topologically protected surface state for Bi2Se3, the interface DLS has stronger overlap with the atoms of the Bi2Se3 layers, especially slightly away from the zone center. We believe that this interface DLS is the topologically protected Bi2Se3 edge state which "spills" over to the Bi2Se3 layers to optimize its energy.

引用

页数：4

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