https://doi.org/10.1140/epjb/e2013-40044-1
Regular Article
Final-state effects in photoemission experiments from graphene on Ni(111)
1
Physikalisches Institut, Westfälische Wilhelms-Universität
Münster, Wilhelm-Klemm-Strasse
10, 48149
Münster,
Germany
2
Zernike Institute for Advanced Materials, University of Groningen,
Nijenborgh 4,
9747AG
Groningen, The
Netherlands
3
Institut of Inorganic and Analytical Chemistry, Johannes Gutenberg
University Mainz, Duesbergweg
10-14, 55128
Mainz,
Germany
a e-mail: p.rudolf@rug.nl
b e-mail: hzach@uni-muenster.de
Received:
21
January
2013
Received in final form:
18
March
2013
Published online:
20
May
2013
Photon-energy dependent photoemission experiments using high harmonic radiation as a tunable 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.
Key words: Mesoscopic and Nanoscale Systems
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2013
