Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides.

@article{Xiao2012CoupledSA,
  title={Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides.},
  author={Di Xiao and Gui-Bin Liu and Wanxiang Feng and Xiaodong Xu and Wang Yao},
  journal={Physical review letters},
  year={2012},
  volume={108 19},
  pages={
          196802
        }
}
We show that inversion symmetry breaking together with spin-orbit coupling leads to coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides, making possible controls of spin and valley in these 2D materials. The spin-valley coupling at the valence-band edges suppresses spin and valley relaxation, as flip of each index alone is forbidden by the valley-contrasting spin splitting. Valley Hall and spin Hall effects coexist in both electron-doped and hole-doped… 

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