Role of hysteresis in the molecular picture of friction

D. J. Diestler, G. T. Gao, X. C. Zeng

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


A constrained Monte Carlo technique was used to study the effects of hysteresis on the friction curve (shear yield stress vs. normal stress) for an ideal microscopic contact: two rigid crystalline surfaces separated by a mobile adsorbed film. The constraint in the form of an auxiliary external field corresponds to the relaxation time for migration of admolecules relative to the time required for a measurement. Wide variation in the form of the friction curve with the (relative) relaxation time shows that hysteresis (irreversibility) must be incorporated into a complete molecular picture of friction.

Original languageEnglish (US)
Pages (from-to)1175-1178
Number of pages4
JournalPhysical Chemistry Chemical Physics
Issue number7
StatePublished - Apr 1 2001

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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