Exciton fine structure and spin decoherence in monolayers of transition metal dichalcogenides

@article{Glazov2014ExcitonFS,
  title={Exciton fine structure and spin decoherence in monolayers of transition metal dichalcogenides},
  author={Mikhail M. Glazov and Thierry Amand and Xavier Marie and D. Lagarde and L. Bouet and Bernhard Urbaszek},
  journal={Physical Review B},
  year={2014},
  volume={89},
  pages={201302}
}
We study the neutral exciton energy spectrum fine structure and its spin dephasing in transition metal dichalcogenides such as MoS$_2$. The interaction of the mechanical exciton with its macroscopic longitudinal electric field is taken into account. The splitting between the longitudinal and transverse excitons is calculated by means of the both electrodynamical approach and $\mathbf k \cdot \mathbf p$ perturbation theory. This long-range exciton exchange interaction can induce valley… 

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