Benedek, G.; Miret-Artés, S.; Manson, J.R.; Toennies, J.P. The Electron–Phonon Interaction at Vicinal Metal Surfaces Measured with Helium Atom Scattering. Nanomaterials2023, 13, 2997.
Benedek, G.; Miret-Artés, S.; Manson, J.R.; Toennies, J.P. The Electron–Phonon Interaction at Vicinal Metal Surfaces Measured with Helium Atom Scattering. Nanomaterials 2023, 13, 2997.
Benedek, G.; Miret-Artés, S.; Manson, J.R.; Toennies, J.P. The Electron–Phonon Interaction at Vicinal Metal Surfaces Measured with Helium Atom Scattering. Nanomaterials2023, 13, 2997.
Benedek, G.; Miret-Artés, S.; Manson, J.R.; Toennies, J.P. The Electron–Phonon Interaction at Vicinal Metal Surfaces Measured with Helium Atom Scattering. Nanomaterials 2023, 13, 2997.
Abstract
It has been recently demonstrated that inelastic helium-atom scattering from conducting surfaces can provide a direct measurement of the surface electron-phonon coupling constant (mass-enhancement factor ) via the temperature- or the incident-energy-dependence of the Debye-Waller exponent. The analysis of previous published as well as unpublished helium atom scattering diffraction data from the vicinal surfaces of copper (Cu(11), = 3,5,7) and aluminium (Al(221) and Al(332)) permits to extract for this class of surfaces, suggesting an enhancement with respect to the corresponding data for the low-index surfaces (111) and (001) above a possible roughening transition temperature. The specific role of steps as compared to that of terraces is briefly discussed.
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