TY  - JOUR
AU  - Politano, Antonio
PY  - 2016
TI  - Quasi-freestanding graphene on Ni(110): A graphene/metal contact with suppressed interface states
JO  - Nano Research
SN  - 1998-0124
SP  - 1795
EP  - 1800
VL  - 9
IS  - 6
AB  - Graphene/Ni(110) has been studied by time-resolved X-ray photoelectron spectroscopy and near-edge X-ray absorption fine structure. The C 1s core level shows a splitting typical of periodically rippled interfaces. The analysis of the C K-edge reveals that the interface states previously observed for graphene/Ni(111) are suppressed in graphene/Ni(110). This suppression is due to the reduced hybridization of the Dirac-cone electrons in graphene with the d-bands of the (110)-oriented nickel contacts. Our results show that, contrary to commensurate growth of graphene on Ni(111), epitaxially grown graphene on Ni(110) behaves as a quasi-freestanding sheet, as the lattice mismatch gives rise to a moiré reconstruction.
UR  - https://doi.org/10.1007/s12274-016-1072-3
DO  - 10.1007/s12274-016-1072-3