TY  - JOUR
AU  - Kröger, J.
AU  - Lehwald, S.
AU  - Ibach, H.
TI  - Surface dynamics of Mo(110)-H and Mo(110)-Li
JO  - Surface science
VL  - 530
SN  - 0039-6028
CY  - Amsterdam
PB  - Elsevier
M1  - PreJuSER-28996
SP  - 170 - 174
PY  - 2003
N1  - Record converted from VDB: 12.11.2012
AB  - We compare the surface dynamics of the adsorbate systems Mo(110)-H and Mo(110)-Li. In both cases electron energy loss spectroscopy measurements revealed strong substrate surface phonon anomalies. Whereas the phonon anomaly of the hydrogen-covered surface was unequivocally assigned to be of the Kohn type, the anomalous behavior of the surface phonons of the lithium-covered surface remained obscure. In this paper we develop an experimental criterion based on the dispersion of adsorbate phonons, which allows to decide whether the observed substrate surface phonon anomaly is of the Kohn type or not. Employing this criterion we now definitely rule out that the anomaly on Mo(110)-Li is due to the Kohn effect. (C) 2003 Elsevier Science B.V. All rights reserved.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000182639100007
DO  - DOI:10.1016/S0039-6028(03)00440-0
UR  - https://juser.fz-juelich.de/record/28996
ER  -