Temperature dependence of photoelectron scattering from a monolayer
- 15 September 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (6), 4386-4389
- https://doi.org/10.1103/physrevb.34.4386
Abstract
Monolayers of lead on Ge(111) were investigated using angle-resolved photoelectron spectroscopy with synchrotron radiation. A narrow state close to the valence-band maximum is found to have the characteristics of a lead-induced surface resonance. This surface resonance exhibits a strong intensity dependence on substrate temperature. The temperature dependence is found to be consistent with a Debye-Waller-factor model that incorporates atomic correlations only between overlayer atoms, and neglects multiple scattering. The effective surface Debye temperature is reduced from that of a Pb(111) surface.Keywords
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