Transport in quantum spin Hall phase of graphene nanoribbons

G. Qin, H. Chen, H. Mizuseki, Y. Kawazoe

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The electron transport properties with the relativistic intrinsic and Rashba spin-orbit (SO) couplings in a graphene nanoribbon are investigated by using the third-nearest-neighbor tight-binding model and the nonequilibrium Green function method. The numerical results display a perfect quantum spin Hall state (QSH) surrounded by a simple insulator state, presented in Rashba SO coupling vs sublattice potential plane. The QSH state is enhanced by the intrinsic SO coupling, indicating a quantum topological property of graphene nanoribbons.

Original languageEnglish
Article number063713
JournalJournal of Applied Physics
Volume112
Issue number6
DOIs
Publication statusPublished - 2012 Sep 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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