Spin-orbit effects in a graphene bipolar pn junction

A. Yamakage, K. I. Imura, J. Cayssol, Y. Kuramoto

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

A graphene pn junction is studied theoretically in the presence of both intrinsic and Rashba spin-orbit couplings. We show that a crossover from perfect reflection to perfect transmission is achieved at normal incidence by tuning the perpendicular electric field. By further studying angular-dependent transmission, we demonstrate that perfect reflection at normal incidence can be clearly distinguished from trivial band gap effects. We also investigate how spin-orbit effects modify the conductance and the Fano factor associated with a potential step in both nn and np cases.

Original languageEnglish
Article number47005
JournalEPL
Volume87
Issue number4
DOIs
Publication statusPublished - 2009 Aug 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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