Nature Communications (Mar 2020)

Gate controlled valley polarizer in bilayer graphene

  • Hao Chen,
  • Pinjia Zhou,
  • Jiawei Liu,
  • Jiabin Qiao,
  • Barbaros Oezyilmaz,
  • Jens Martin

DOI
https://doi.org/10.1038/s41467-020-15117-y
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 7

Abstract

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Here, the authors present a gate-controlled valley-polarizer based on bilayer graphene, and through optimized device geometry and stacking method they obtain two orders of magnitude difference in conductance between the valley-polarized state and gapped states without the application of external magnetic fields.