Minimum of spin-orbit coupling in two-dimensional structures

被引：62

作者：

Sherman, EY ^{[1
]}

机构：

[1] Graz Univ, Inst Theoret Phys, A-8010 Graz, Austria

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.67.161303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spin-orbit coupling in symmetrically doped Si/Si1-xGex quantum wells is investigated theoretically. Unavoidable fluctuations of concentration of dopant ions lead to a finite spin-orbit coupling there even if the mean dopant concentrations are equal on both sides of the well. This effect, being a realization of the minimal possible strength of spin-orbit coupling, leads to a measurable intensity of electric-dipole spin resonance, that is, to electron spin-flip transitions caused by electric field of an incident electromagnetic wave.

引用

页数：4

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