TITLE

Valley filter in strain engineered graphene

AUTHOR(S)
Fujita, T.; Jalil, M. B. A.; Tan, S. G.
PUB. DATE
July 2010
SOURCE
Applied Physics Letters;7/26/2010, Vol. 97 Issue 4, p043508
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We propose a simple, yet highly efficient and robust device for producing valley polarized current in graphene. The device comprises of two distinct components; a region of uniform uniaxial strain, adjacent to an out-of-plane magnetic barrier configuration formed by patterned ferromagnetic stripes. We show that when the amount of strain, magnetic field strength, and Fermi level are properly tuned, the output current can be made to consist of only a single valley contribution. Perfect valley filtering is achievable within experimentally accessible parameters.
ACCESSION #
52616398

 

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