Reversal of Klein reflection in bilayer graphene

Details Reversal of Klein reflection in bilayer graphene Reversal of Klein reflection in bilayer graphene

2011-06-02

arxiv.org/abs/1106.0408v1

Journal of Physics: Condens. Matter, Vol 24, 175003 (2012)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 double space single column latexed pages, 15 eps files in four figures

Scientific paper

10.1088/0953-8984/24/17/175003

Whereas massless Dirac fermions in monolayer graphene exhibit Klein tunneling when passing through a potential barrier upon normal incidence, such a barrier totally reflects massive Dirac fermions in bilayer graphene due to difference in chirality. We show that, in the presence of magnetic barriers, such massive Dirac fermions can have transmission through even at normal incidence. The general consequence of this behaviour for multilayer graphene consisting of massless and massive modes are mentioned. We also briefly discuss the effect of a bias voltage on such magnetotransport.

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