title: Quantum-well wave-function localization and the electron-phonon interaction in thin Ag nanofilms.
abstract: The electron-phonon interaction in thin Ag nanofilms epitaxially grown on Cu(111) is investigated by temperature-dependent and angle-resolved photoemission from silver quantum-well states. Clear oscillations in the electron-phonon coupling parameter as a function of the silver film thickness are observed. Different from other thin film systems where quantum oscillations are related to the Fermi-level crossing of quantum-well states, we can identify a new mechanism behind these oscillations, based on the wave-function localization of the quantum-well states in the film.
authors.affiliation: Department of Physics, University of Kaiserslautern, 67663 Kaiserslautern, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Mathias
authors.forename: M
authors.initials: M
authors.lastname: Wiesenmayer
authors.forename: M
authors.initials: M
authors.lastname: Aeschlimann
authors.forename: M
authors.initials: M
authors.lastname: Bauer