Reference : Screening of electron-phonon coupling in graphene on Ir(111)
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/10993/10565
Screening of electron-phonon coupling in graphene on Ir(111)
English
Endlich, M. [Technische Universität Illmenau, Germany]
Molina-Sanchez, Alejandro mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Wirtz, Ludger mailto [urg, Physics and Material Sciences Research Unit / CNRS UMR 8520, IEMN, France]
Kröger, J. []
4-Nov-2013
Physical Review. B, Condensed Matter and Materials Physics
American Physical Society
88
205403
Yes (verified by ORBilu)
International
1098-0121
1550-235X
Woodbury
NY
[en] 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 ¯ 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.
http://hdl.handle.net/10993/10565
10.1103/PhysRevB.88.205403

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
PhysRevB.88.205403.pdfPublisher postprint238.48 kBView/Open

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.