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arXiv · 1505.07667

Intrinsic spin Hall effect in systems with striped spin-orbit coupling

Goetz Seibold·Sergio Caprara·Marco Grilli·Roberto Raimondi
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Abstract

The Rashba spin-orbit coupling arising from structure inversion asymmetry couples spin and momentum degrees of freedom providing a suitable (and very intensively investigated) environment for spintronic effects and devices. Here we show that in the presence of strong disorder, non-homogeneity in the spin-orbit coupling gives rise to a finite spin Hall conductivity in contrast with the corresponding case of a homogeneous linear spin-orbit coupling. In particular, we examine the inhomogeneity arising from a striped structure for a two-dimensional electron gas, affecting both density and Rashba spin-orbit coupling. We suggest that this situation can be realized at oxide interfaces with periodic top gating.

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Goetz Seibold, Sergio Caprara, Marco Grilli, Roberto Raimondi. 2015-05-28. Intrinsic spin Hall effect in systems with striped spin-orbit coupling. https://doi.org/10.1209/0295-5075%2F112%2F17004

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