TY  - JOUR
AU  - Sheverdyaeva, P. M.
AU  - Bihlmayer, G.
AU  - Cappelluti, E.
AU  - Pacilé, D.
AU  - Mazzola, F.
AU  - Atodiresei, N.
AU  - Jugovac, Matteo
AU  - Grimaldi, I.
AU  - Contini, G.
AU  - Kundu, Asish K.
AU  - Vobornik, I.
AU  - Fujii, J.
AU  - Moras, P.
AU  - Carbone, C.
AU  - Ferrari, L.
TI  - Spin-Dependent π π * Gap in Graphene on a Magnetic Substrate
JO  - Physical review letters
VL  - 132
IS  - 26
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2024-04611
SP  - 266401
PY  - 2024
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 38996316
UR  - <Go to ISI:>//WOS:001259948200011
DO  - DOI:10.1103/PhysRevLett.132.266401
UR  - https://juser.fz-juelich.de/record/1028430
ER  -