Rashba Spin-Orbit Coupling Probed by the Weak Antilocalization Analysis in InAlAs/InGaAs/InAlAs Quantum Wells as a Function of Quantum Well Asymmetry

Koga, Takaaki; Nitta, Junsaku; Akazaki, Tatsushi; Takayanagi, Hideaki

doi:10.1103/PhysRevLett.89.046801


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Rashba Spin-Orbit Coupling Probed by the Weak Antilocalization Analysis in InAlAs/InGaAs/InAlAs Quantum Wells as a Function of Quantum Well Asymmetry

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Title:	Rashba Spin-Orbit Coupling Probed by the Weak Antilocalization Analysis in InAlAs/InGaAs/InAlAs Quantum Wells as a Function of Quantum Well Asymmetry
Authors:	Koga, Takaaki Browse this author →KAKEN DB
	Nitta, Junsaku Browse this author
	Akazaki, Tatsushi Browse this author
	Takayanagi, Hideaki Browse this author
Issue Date:	Jul-2002
Publisher:	American Physical Society
Journal Title:	Physical Review Letters
Volume:	89
Issue:	4
Start Page:	046801-1
End Page:	046801-4
Publisher DOI:	10.1103/PhysRevLett.89.046801
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 the weak antilocalization (WAL) analysis as a function of the structural inversion asymmetry (SIA) of the quantum wells. We have found that the deduced α 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 α suggests that our WAL approach for deducing α values provides a useful tool in designing future spintronics devices that utilize the Rashba spin-orbit coupling.
Rights:	Copyright © 2002 American Physical Society
Relation:	http://www.aps.org/
Type:	article
URI:	http://hdl.handle.net/2115/14681
Appears in Collections:	情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 古賀貴亮

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