Electrically tunable exchange splitting in bilayer graphene on monolayer Cr2X2Te6 with X = Ge, Si, and Sn

URN to cite this document:: urn:nbn:de:bvb:355-epub-412948
DOI to cite this document:: 10.5283/epub.41294

Zollner, Klaus

; Gmitra, Martin ; Fabian, Jaroslav

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Date of publication of this fulltext: 18 Dec 2019 13:54

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Abstract

We investigate the electronic band structure and the proximity exchange effect in bilayer graphene (BLG) on a family of ferromagnetic multilayers Cr2X2Te6, X = Ge, Si, and Sn, with first principles methods. In each case the intrinsic electric field of the heterostructure induces an orbital gap on the order of 10 meV in the graphene bilayer. The proximity exchange is strongly band-dependent. For ...