Abstract
It is shown that non-homogeneity in the spin-orbit coupling (SOC) arising from structure inversion asymmetry gives rise to a finite intrinsic spin Hall conductivity in contrast with the corresponding case of a homogeneous SOC in the disordered two-dimensional electron gas. In particular, we examine the inhomogeneity arising from a striped modulation of the Rashba type spin-orbit coupling. A corresponding structure could be realized at oxide interfaces with periodic top gating or in semiconductor heterostructures.
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Seibold, G., Caprara, S., Grilli, M. et al. Non-equilibrium Spin Currents in Systems with Striped Rashba Spin-Orbit Coupling. J Supercond Nov Magn 30, 123–128 (2017). https://doi.org/10.1007/s10948-016-3774-x
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DOI: https://doi.org/10.1007/s10948-016-3774-x