Polarization and valley switching in monolayer group-IV monochalcogenides

@article{Hanakata2016PolarizationAV,
  title={Polarization and valley switching in monolayer group-IV monochalcogenides},
  author={Paul Z. Hanakata and Alexandra Carvalho and David K Campbell and Harold S. Park},
  journal={Physical Review B},
  year={2016},
  volume={94},
  pages={035304}
}
  • Paul Z. Hanakata, Alexandra Carvalho, +1 author Harold S. Park
  • Published 2016
  • Physics
  • Physical Review B
  • Group-IV monochalcogenides are a family of two-dimensional puckered materials with an orthorhombic structure that is comprised of polar layers. In this article, we use first principles calculations to show the multistability of monolayer SnS and GeSe, two prototype materials where the direction of the puckering can be switched by application of tensile stress or electric field. Furthermore, the two inequivalent valleys in momentum space, which are dictated by the puckering orientation, can be… CONTINUE READING

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