Graphene on a bulk SiO2 substrate acquires an anisotropic spin texture, and oxygen vacancies plus short-range disorder can drive spin relaxation to near-isotropy, matching measured anisotropies of 0.5 to 1.
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Spin lifetime anisotropy in graphene induced by the SiO2 interface
Graphene on a bulk SiO2 substrate acquires an anisotropic spin texture, and oxygen vacancies plus short-range disorder can drive spin relaxation to near-isotropy, matching measured anisotropies of 0.5 to 1.