Semiclassical Boltzmann theory of spin Hall effects in giant Rashba systems

Cong Xiao

doi:10.1007/s11467-017-0720-8

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arXiv · 1705.09399

Semiclassical Boltzmann theory of spin Hall effects in giant Rashba systems

Cong Xiao

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Abstract

For the spin Hall effect arising from strong band-structure spin-orbit coupling, a semiclassical Boltzmann theory reasonably addressing the intriguing disorder effect called side-jump is still absent. In this paper we describe such a theory of which the key ingredient is the spin-current-counterpart of the semiclassical side-jump velocity (introduced in the context of the anomalous Hall effect). Applying this theory to spin Hall effects in a two-dimensional electron gas with giant Rashba spin-orbit coupling, we find largely enhanced spin Hall angle in the presence of magnetic impurities when only the lower Rashba band is partially occupied.

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Cong Xiao. 2017-05-25. Semiclassical Boltzmann theory of spin Hall effects in giant Rashba systems. https://doi.org/10.1007/s11467-017-0720-8

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