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arXiv · 1403.5283

Large conduction band and Fermi velocity spin splittings due to Coulomb interactions in single-layer MoS_{2}

Yago Ferreiros·Alberto Cortijo
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Abstract

We study the effect of Coulomb interactions on the low energy band structure of single-layer transition metal dichalcogenide semiconductors using an effective low energy model. We show how a large conduction band spin splitting and a spin dependent Fermi velocity are generated in MoS$_2$, as a consequence of the difference between the gaps of the two spin projections induced by the spin-orbit interaction. The conduction band and Fermi velocity spin splittings found are in agreement with the optical absorption energies of the excitonic peaks A, B measured in the experiments.

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Yago Ferreiros, Alberto Cortijo. 2014-12-24. Large conduction band and Fermi velocity spin splittings due to Coulomb interactions in single-layer MoS_{2}. https://doi.org/10.1103/physrevb.90.195426

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