Opposite Changes in Gap Width of Opposite Spin States Induced by Rashba Effect in Anti-ferromagnetic Graphene on Ni(111)

2012/11/17 by Chenhao Jin, Zhen Bi, Jin, Chenhao +7
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #cond-mat.mes-hall #cond-mat.mtrl-sci

paper · pdf · doi:10.48550/arxiv.1211.4076

5 pages, 5 figures

arxiv created 2012/11/20 · arxiv updated 2012/11/21

Abstract

Graphene is a promising candidate for applications in spintronics. In this paper, Density Functional Theory method is used to calculate the band structure and magnetic properties of graphene on Ni(111). Our results show that once there is antiferromagnetic order in graphene, an external electric field at the order of 10⁹ V/m can induce a gap width difference of tens of meV for opposite spin states near the Fermi surface.

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