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arXiv · 0707.4493

Temperature Dependence of Rashba Spin-orbit Coupling in Quantum Wells

P. S. Eldridge·W. J. H. Leyland·P. G. Lagoudakis·O. Z. Karimov·M. Henini·D. Taylor·R. T. Phillips·R. T. Harley
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Abstract

We perform an all-optical spin-dynamic measurement of the Rashba spin-orbit interaction in (110)-oriented GaAs/AlGaAs quantum wells. The crystallographic direction of quantum confinement allows us to disentangle the contributions to spin-orbit coupling from the structural inversion asymmetry (Rashba term) and the bulk inversion asymmetry. We observe an unexpected temperature dependence of the Rashba spin-orbit interaction strength that signifies the importance of the usually neglected higher-order terms of the Rashba coupling.

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P. S. Eldridge, W. J. H. Leyland, P. G. Lagoudakis, O. Z. Karimov, M. Henini, D. Taylor, R. T. Phillips, R. T. Harley. 2007-07-30. Temperature Dependence of Rashba Spin-orbit Coupling in Quantum Wells. https://arxiv.org/abs/0707.4493

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