Ab-initio Prediction of Conduction Band Spin Splitting in Zincblende Semiconductors

Details Ab-initio Prediction of Conduction Band Spin Splitting in Zincblende Semiconductors Ab-initio Prediction of Conduction Band Spin Splitting in Zincblende Semiconductors

2005-08-11

arxiv.org/abs/cond-mat/0508274v2

Phys. Rev. Lett. 96, 086405 (2006)

Physics

Condensed Matter

Other Condensed Matter

9 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.96.086405

We use a recently developed self-consistent $GW$ approximation to present systematic \emph{ab initio} calculations of the conduction band spin splitting in III-V and II-V zincblende semiconductors. The spin orbit interaction is taken into account as a perturbation to the scalar relativistic hamiltonian. These are the first calculations of conduction band spin splittings based on a quasiparticle approach; and because the self-consistent $GW$ scheme accurately reproduces the relevant band parameters, it is expected to be a reliable predictor of spin splittings. The results are compared to the few available experimental data and a previous calculation based on a model one-particle potential. We also briefly address the widely used {\bf k}$\cdot${\bf p} parameterization in the context of these results.

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