%0 Journal Article
%T Generation of a fully valley-polarized current in bulk graphene
%A Yu Song
%A Feng Zhai
%A Yong Guo
%J Physics
%D 2013
%I arXiv
%R 10.1063/1.4827995
%X The generation of a fully valley-polarized current (FVPC) in bulk graphene is a fundamental goal in valleytronics. To this end, we investigate valley-dependent transport through a strained graphene modulated by a finite magnetic superlattice. It is found that this device allows a coexistence of insulating transmission gap of one valley and metallic resonant band of the other. Accordingly, a substantial bulk FVPC appears in a wide range of edge orientation and temperature, which can be effectively tuned by structural parameters. A valley-resolved Hall configuration is designed to measure the valley polarization degree of the filtered current.
%U http://arxiv.org/abs/1307.0941v2