article2D MaterialsApr 2, 2015HYBRID OA

k · p theory for two-dimensional transition metal dichalcogenide semiconductors

University of Konstanz · University of Regensburg · +1 more institution

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Abstract

We present k p Hamiltonians parametrized by ab initio density functional theory calculations to describe the dispersion of the valence and conduction bands at their extrema (the K, Q, , and M points of the hexagonal Brillouin zone) in atomic crystals of semiconducting monolayer transition metal dichalcogenides (TMDCs). We discuss the parametrization of the essential parts of the k p Hamiltonians for MoS 2 , MoSe 2 , MoTe 2 , WS 2 , WSe 2 , and WTe 2 , including the spin-splitting and spinpolarization of the bands, and we briefly review the vibrational properties of these materials. We then use k p

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Authors

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Topics & keywords

Keywords
  • Transition metal
  • Semiconductor
  • Materials science
  • Condensed matter physics
  • Chemistry
  • Physics
  • Optoelectronics
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