Screening of electron-phonon coupling in graphene on Ir(111) - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2013

Screening of electron-phonon coupling in graphene on Ir(111)

Résumé

The phonon dispersion of graphene on Ir(111) has been determined by means of angle-resolved inelastic electron scattering and density functional calculations. Kohn anomalies of the highest optical-phonon branches are observed at the ¯¯¯Γ and ¯K point of the surface Brillouin zone. At ¯K the Kohn anomaly is weaker than observed for pristine graphene and graphite. This observation is rationalized in terms of a decrease of the electron-phonon coupling due to screening of graphene electron correlations by the metal substrate.
Fichier principal
Vignette du fichier
Endlich_2013_PhysRevB.88.205403.pdf (238.48 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-00911367 , version 1 (01-06-2022)

Identifiants

Citer

M. Endlich, A. Molina-Sánchez, L. Wirtz, J. Kröger. Screening of electron-phonon coupling in graphene on Ir(111). Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2013, 88, 205403, 4 p. ⟨10.1103/PhysRevB.88.205403⟩. ⟨hal-00911367⟩
15 Consultations
38 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More