Numerical study of spin relaxation in a quantum wire with spin-orbit interaction

Tomoaki Kaneko; Mikito Koshino; Tsuneya Ando

doi:10.1103/PhysRevB.78.245303

Numerical study of spin relaxation in a quantum wire with spin-orbit interaction

Tomoaki Kaneko, Mikito Koshino, Tsuneya Ando

SCI - Physics

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

The spin-relaxation length in quantum wires with spin splitting due to the lack of the structure inversion symmetry is numerically studied using a tight-binding model. The spin-relaxation length is sensitive to the spin-split subband structure in quantum wires. When the spin splitting is smaller than the subband separations, the quantized one-dimensional subbands have a well-defined spin and the spin-relaxation length is considerably enhanced with the decrease in the width.

Original language	English
Article number	245303
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.78.245303
Publication status	Published - 2008 Dec 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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