Dominance of phonon friction for a xenon film on a silver (111) surface

M. S. Tomassone, J. B. Sokoloff, A. Widom, J. Krim

Research output: Contribution to journalArticlepeer-review

108 Scopus citations

Abstract

Molecular dynamic simulations for a Xe film sliding on an Ag(111) substrate are performed from the submonolayer through the bilayer regime, which, when compared to both friction and surface resistivity measurements, demonstrate that the friction in this system is dominated by phonon excitations. Slip times are found both by direct calculation of the decay of the center-of-mass velocity, as well as from the decay of the velocity correlation function. Agreement of the slip times from the two methods supports the occurrence of a friction force linear in velocity over a wide velocity range. 1997

Original languageEnglish (US)
Pages (from-to)4798-4801
Number of pages4
JournalPhysical review letters
Volume79
Issue number24
DOIs
StatePublished - Jan 1 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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