TY  - JOUR
AU  - Peters, S.
AU  - Peredkov, S.
AU  - Al-Hada, M.
AU  - Neeb, M.
AU  - Eberhardt, W.
TI  - Positive XPS Binding Energy Shift of Supported CuN-Clusters Governed by Initial State Effects
JO  - Journal of electron spectroscopy and related phenomena
VL  - 192
SN  - 0368-2048
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - PUBDB-2015-01114
SP  - 52 - 54
PY  - 2014
AB  - An initial state effect is established as origin for the positive 2p core electron binding energy shift found for CuN-clusters supported by a thin silica layer of a p-doped Si(1 0 0) wafer. Using the concept of the Auger parameter and taking into account the usually neglected Coulomb correlation shift in the Auger final state (M4,5M4,5) it is shown that the initial state shift is comparable to the measured XPS shift while the final state relaxation shift contributes only marginally to the binding energy shift. The cluster results differ from the negative surface core-level shift of crystalline copper which has been explained in terms of a final state relaxation effect.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000335546500009
DO  - DOI:10.1016/j.elspec.2014.01.011
UR  - https://bib-pubdb1.desy.de/record/207129
ER  -