On-site electron correlations in Bi2Se3 topological insulator

被引：0
|
作者：
Craco L. [1 ]
机构：
[1] Instituto de Física, Universidade Federal de Mato Grosso, 78060-900, Cuiabá, MT
来源：
The European Physical Journal B | 2015年 / 88卷 / 11期
关键词：
Solid State and Materials;
D O I：
10.1140/epjb/e2015-60691-2
中图分类号：
学科分类号：
摘要：
We explore the role of local, multi-orbital electron correlations in Bi2Se3 topological insulator. Based on local-density-approximation plus dynamical-mean-field-theory (LDA + DMFT) we derive a Kondo-Mott electronic transition, predicting maximally non-metallicity in three-dimensional Bi-chalcogenide topological insulators. Our results within the spin-orbit Kondo state show good agreement with scanning tunneling spectroscopy taken on pure and Cu-doped Bi2Se3 samples and effective mass enhancement of Dirac electrons for CuxBi2Se3, confirming the hypothesis of electron correlations in three-dimensional p-band topological insulators. © 2015, EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.
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页码：1 / 6
页数：5
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