Photon-energy dependent photoemission experiments using high harmonic radiation as a tun- able photon source on epitaxially grown graphene on a Ni(111) substrate are presented. A resonance in the photoemission cross section for the σ and π states of graphene was observed and compared to a simple model for the determination of photoemission cross sections of free standing graphene, pointing out the role of the interaction of graphene with the nickel substrate.
Final-state effects in photoemission experiments from graphene on Ni(111)
Bignardi, Luca;
2013-01-01
Abstract
Photon-energy dependent photoemission experiments using high harmonic radiation as a tun- able photon source on epitaxially grown graphene on a Ni(111) substrate are presented. A resonance in the photoemission cross section for the σ and π states of graphene was observed and compared to a simple model for the determination of photoemission cross sections of free standing graphene, pointing out the role of the interaction of graphene with the nickel substrate.File in questo prodotto:
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