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arxiv: cond-mat/0601252 · v1 · pith:3KNW7WQPnew · submitted 2006-01-12 · ❄️ cond-mat.mes-hall · cond-mat.dis-nn

Observation of Spin Relaxation Anisotropy in Semiconductor Quantum Wells

N.S. Averkiev , L.E. Golub , A.S. Gurevich , V.P. Evtikhiev , V.P. Kochereshko , A.V. Platonov , A.S. Shkolnik , Yu.P. Efimov This is my paper
classification ❄️ cond-mat.mes-hall cond-mat.dis-nn
keywords relaxationspinquantumanisotropydresselhausrashbasemiconductorspin-orbit
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Spin relaxation of two-dimensional electrons in asymmetrical (001) AlGaAs quantum wells are measured by means of Hanle effect. Three different spin relaxation times for spins oriented along [110], [1-10] and [001] crystallographic directions are extracted demonstrating anisotropy of D'yakonov-Perel' spin relaxation mechanism. The relative strengths of Rashba and Dresselhaus terms describing the spin-orbit coupling in semiconductor quantum well structures. It is shown that the Rashba spin-orbit splitting is about four times stronger than the Dresselhaus splitting in the studied structure.

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