%0 Journal Article
%A Sheverdyaeva, P. M.
%A Bihlmayer, G.
%A Cappelluti, E.
%A Pacilé, D.
%A Mazzola, F.
%A Atodiresei, N.
%A Jugovac, Matteo
%A Grimaldi, I.
%A Contini, G.
%A Kundu, Asish K.
%A Vobornik, I.
%A Fujii, J.
%A Moras, P.
%A Carbone, C.
%A Ferrari, L.
%T Spin-Dependent π π * Gap in Graphene on a Magnetic Substrate
%J Physical review letters
%V 132
%N 26
%@ 0031-9007
%C College Park, Md.
%I APS
%M FZJ-2024-04611
%P 266401
%D 2024
%X We present a detailed analysis of the electronic properties of graphene/Eu/Ni(111). By using angle and spin-resolved photoemission spectroscopy and ab initio calculations, we show that the Eu-intercalation of graphene/Ni(111) restores the nearly freestanding dispersion of the ππ∗ Dirac cones at the K point with an additional lifting of the spin degeneracy due to the mixing of graphene and Eu states. The interaction with the magnetic substrate results in a large spin-dependent gap in the Dirac cones with a topological nature characterized by a large Berry curvature, and a spin-polarized van Hove singularity, whose closeness to the Fermi level gives rise to a polaronic band.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 38996316
%U <Go to ISI:>//WOS:001259948200011
%R 10.1103/PhysRevLett.132.266401
%U https://juser.fz-juelich.de/record/1028430