Rashba spin-orbit coupling probed by the weak antilocalization analysis in InAlAs/InGaAs/InAlAs quantum wells as a function of quantum well asymmetry

被引：468

作者：

Koga, T

Nitta, J

Akazaki, T

Takayanagi, H

机构：

[1] NTT Corp, NTT Basic Res Labs, Kanagawa 2430198, Japan

[2] Japan Sci & Technol Corp, PRESTO, Nanostruct & Mat Property, Kawaguchi, Japan

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.89.046801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated the values of the Rashba spin-orbit coupling constant alpha in In(0.52) Al(0.48) As/In (0.53)Ga (0.47)As/In (0.52)Al (0.48)As quantum wells using the weak antilocalization (WAL) analysis as a function of the structural inversion asymmetry (SIA) of the quantum wells. We have found that the deduced alpha values have a strong correlation with the degree of SIA of the quantum wells as predicted theoretically. The good agreement between the theoretical and experimental values of alpha suggests that our WAL approach for deducing alpha values provides a useful tool in designing future spintronics devices that utilize the Rashba spin-orbit coupling.

引用

页码：1 / 046801

页数：4