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Anti-Weak-Localization Study of Rashba Spin-Splitting Energy as a Function of Well Asymmetry in InAlAs/InGaAs/InAlAs Quantum Wells

Published online by Cambridge University Press:  17 March 2011

Takaaki Koga ,
Junsaku Nitta ,
Tatsushi Akazaki  and
Hideaki Takayanagi
Takaaki Koga
Affiliation:
NTT Basic Research Laboratories, NTT Corporation, Morinosato-Wakamiya 3-1, Atsugi, Kanagawa, 243-0198, Japan
Junsaku Nitta
Affiliation:
NTT Basic Research Laboratories, NTT Corporation, Morinosato-Wakamiya 3-1, Atsugi, Kanagawa, 243-0198, Japan
Tatsushi Akazaki
Affiliation:
NTT Basic Research Laboratories, NTT Corporation, Morinosato-Wakamiya 3-1, Atsugi, Kanagawa, 243-0198, Japan
Hideaki Takayanagi
Affiliation:
NTT Basic Research Laboratories, NTT Corporation, Morinosato-Wakamiya 3-1, Atsugi, Kanagawa, 243-0198, Japan
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Abstract

We have investigated the values of the Rashba spin-orbit coupling constant α in In0.52Al0.48As/In0.53Ga0.47As/In0.52Al0.48As quantum wells using an anti-weak-localization (AWL) analysis as a function of quantum well asymmetry. We have found that the deduced α values have strong correlations with the structural inversion asymmetry of the pertinent quantum wells as predicted theoretically. This fact suggests that the AWL analysis provides a reliable way to deduce α values experimentally for designing future spintronics devices.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 690: Symposium F – Spintronics , 2001 , F3.12
Copyright
Copyright © Materials Research Society 2002

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References

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