Molecular tribometry of ultrathin liquid films

John Van Alsten, Steve Granick

Research output: Contribution to journalArticle

Abstract

We study the resistance to sliding of liquid films 1-6 molecules thick. The apparent dynamic viscosity at 1 Hz of nonpolar liquids confined between parallel plates of atomically smooth mica is considerably enhanced over that of the isotropic fluids and shows extreme dependence on pressure. Rapid, reversible switching between liquidlike and noncompliant responses as a function of small changes in normal pressure is also found, suggesting a phase transition to a solidlike structure.

Original languageEnglish (US)
Pages (from-to)2570-2573
Number of pages4
JournalPhysical review letters
Volume61
Issue number22
DOIs
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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