Probing the experimental phonon dispersion of graphene using 12C and 13C isotopes

Download
  1. Get@NRC: Probing the experimental phonon dispersion of graphene using 12C and 13C isotopes (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1103/PhysRevB.86.085409
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titlePhysical Review B - Condensed Matter and Materials Physics
ISSN1098-0121
Volume86
Issue8
Article number85409
AbstractUsing very uniform large-scale chemical vapor deposition grown graphene transferred onto silicon, we were able to identify 15 distinct Raman lines associated with graphene monolayers. This was possible thanks to a combination of different carbon isotopes and different Raman laser energies and extensive averaging without increasing the laser power. This allowed us to obtain a detailed experimental phonon dispersion relation for many points in the Brillouin zone. We further identified a D+D′ peak corresponding to a double-phonon process involving both an inter- and intravalley phonon. © 2012 American Physical Society.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Microstructural Sciences (IMS-ISM)
Peer reviewedYes
NPARC number21269561
Export citationExport as RIS
Report a correctionReport a correction
Record identifiere90b058a-77d4-4808-9c30-d4b7a67bf11b
Record created2013-12-12
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)