Journal
PHYSICAL REVIEW B
Volume 79, Issue 16, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.161409
Keywords
graphene; Landau levels; magnetisation; quantum Hall effect; spin polarised transport; spin-orbit interactions
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Spin splitting of the energy spectrum of single-layer graphene on Au/Ni(111) substrate has been recently reported. I show that eigenstates of spin-orbit coupled graphene are polarized in-plane and are perpendicular to electron momentum k; the magnitude of spin polarization S vanishes when k -> 0. In a perpendicular magnetic field B, S is parallel to B, and two zero modes emerge in the Landau level spectrum. Singular B dependence of their magnetization suggests existence of a new variety of magnetic instability. They also manifest themselves in a new variety of unconventional quantum Hall effect.
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