The bulk and surface dynamics of Sb(111) and the corresponding electron-phonon interaction have been calculated by density functional perturbation theory. The surface phonon bands reveal features related to a remarkable stiffening of the surface bilayer with respect to the bulk ones. The main contribution to electron-phonon interaction involves transitions between surface and bulk states, mostly driven by bulk phonons, and is found to be in good agreement with the value derived from spin angle-resolved photoemission spectroscopy.

Campi, D., Bernasconi, M., Benedek, G. (2012). Phonons and electron-phonon interaction at the Sb(111) surface. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 86(7) [10.1103/PhysRevB.86.075446].

Phonons and electron-phonon interaction at the Sb(111) surface

Campi, D;BERNASCONI, MARCO;BENEDEK, GIORGIO
2012

Abstract

The bulk and surface dynamics of Sb(111) and the corresponding electron-phonon interaction have been calculated by density functional perturbation theory. The surface phonon bands reveal features related to a remarkable stiffening of the surface bilayer with respect to the bulk ones. The main contribution to electron-phonon interaction involves transitions between surface and bulk states, mostly driven by bulk phonons, and is found to be in good agreement with the value derived from spin angle-resolved photoemission spectroscopy.
Articolo in rivista - Articolo scientifico
surface phonons, density functional theory, topological insulators
English
2012
86
7
075446
none
Campi, D., Bernasconi, M., Benedek, G. (2012). Phonons and electron-phonon interaction at the Sb(111) surface. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 86(7) [10.1103/PhysRevB.86.075446].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/37347
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