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Updated: Aug 11, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Electronic-structure dependence of the electron-phonon interaction in Ag
J J Paggel1, D-A Luh, T Miller
1Institut für Experimentalphysik, Freie Universität Berlin, 14195 Berlin, Germany.
Abstract:
The linewidths of sp- and d-band derived electronic quantum-well states in thin films of Ag on Fe(100) are measured as a function of temperature to yield the electron-phonon coupling parameters. The results vary by a factor of up to 35 among the different states. The origin of these huge differences is traced to the decay path selection for the various initial states of the holes created by the photoemission process. The electron-phonon coupling parameter for the top d-band quantum-well state, 0.015+/-0.006, is the smallest ever reported.
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