Lifshitz model in the presence of spin-orbit coupling

被引：0

作者：

Raikh, M. E. ^{[1
]}

机构：

[1] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

来源：

SOLID STATE COMMUNICATIONS | 2023年 / 372卷

关键词：

Lifshitz model; Disorder; Spin; STATES;

D O I：

10.1016/j.ssc.2023.115309

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Wave function of a localized state created by a short-range impurity in two dimensions falls off with distance, ��, from the impurity as 1 ��1/2 exp(- �� ),where ��isthelocalizationradius.Withrandomlypositionedidentical impurities with low concentration, �� MUCH LESS-THAN ��-2, the level smears into a band due to the overlap of the impurity wave functions. This is the essence of the Lifshitz model. We demonstrate that, upon incorporation of the spin-orbit coupling, the impurity wave functions acquire oscillating factors which, subsequently, modify their overlap. As a result of such modification, the density of states develops singularities at certain energies.

引用

页数：4

共 13 条

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