title: Friction and dissipation in epitaxial graphene films.
abstract: We have studied friction and dissipation in single and bilayer graphene films grown epitaxially on SiC. The friction on SiC is greatly reduced by a single layer of graphene and reduced by another factor of 2 on bilayer graphene. The friction contrast between single and bilayer graphene arises from a dramatic difference in electron-phonon coupling, which we discovered by means of angle-resolved photoemission spectroscopy. Bilayer graphene as a lubricant outperforms even graphite due to reduced adhesion.
authors.affiliation: Department of Physics, McGill University, Montreal, Quebec H3A 2T8, Canada.
authors.forename: T
authors.initials: T
authors.lastname: Filleter
authors.forename: J L
authors.initials: JL
authors.lastname: McChesney
authors.forename: A
authors.initials: A
authors.lastname: Bostwick
authors.forename: E
authors.initials: E
authors.lastname: Rotenberg
authors.forename: K V
authors.initials: KV
authors.lastname: Emtsev
authors.forename: Th
authors.initials: T
authors.lastname: Seyller
authors.forename: K
authors.initials: K
authors.lastname: Horn
authors.forename: R
authors.initials: R
authors.lastname: Bennewitz