DOI: 10.1126/science.265.5176.1209. Molecular Origins of Friction: The Force on Adsorbed Layers

Molecular Origins of Friction: The Force on Adsorbed Layers

10.1126/science.265.5176.1209

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

Simulations and perturbation theory are used to study the molecular origins of friction in an ideal model system, a layer of adsorbed molecules sliding over a substrate. These calculations reproduce several surprising features of experimental results. In most cases, the frictional force on a solid monolayer has a different form from that observed between macroscopic solids. No threshold force or static friction is needed to initiate sliding; instead, the velocity is proportional to the force. As in experiments, incommensurate solid layers actually slide more readily than fluid layers. A comparison of experiment, simulation, and analytic results shows that dissipation arises from anharmonic coupling between phonon modes and substrate-induced deformations in the adsorbate.

Bibliography

Cieplak, M., Smith, E. D., & Robbins, M. O. (1994). Molecular Origins of Friction: The Force on Adsorbed Layers. Science, 265(5176), 1209â1212.

Authors 3

Marek Cieplak (first)
Elizabeth D. Smith (additional)
Mark O. Robbins (additional)

References 17 Referenced 257

Allen M. P. Computer Simulation of Liquids (1987).
BRUCH, L.W., XE MONOLAYER ADSORPTION ON AG(111) - STATISTICAL-MECHANICS, SURFACE SCIENCE 91: 1 (1980). (10.1016/0039-6028(80)90068-0) / SURFACE SCIENCE (1980)
COPPERSMITH, S. N., PHYSICAL REVIEW B 28: 2566 (1983). (10.1103/PhysRevB.28.2566) / PHYSICAL REVIEW B (1983)
GEE, M.L., LIQUID TO SOLID-LIKE TRANSITIONS OF MOLECULARLY THIN-FILMS UNDER SHEAR, JOURNAL OF CHEMICAL PHYSICS 93: 1895 (1990). (10.1063/1.459067) / JOURNAL OF CHEMICAL PHYSICS (1990)
10.1126/science.253.5026.1374
KRIM, J, SLIPPAGE OF SIMPLE LIQUID-FILMS ADSORBED ON SILVER AND GOLD SUBSTRATES, JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS 8: 3417 (1990). (10.1116/1.576524) / JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS (1990)
KRIM, J, DAMPING OF A CRYSTAL-OSCILLATOR BY AN ADSORBED MONOLAYER AND ITS RELATION TO INTERFACIAL VISCOSITY, PHYSICAL REVIEW B 38: 12184 (1988). (10.1103/PhysRevB.38.12184) / PHYSICAL REVIEW B (1988)
KRIM, J, NANOTRIBOLOGY OF A KR MONOLAYER - A QUARTZ-CRYSTAL MICROBALANCE STUDY OF ATOMIC-SCALE FRICTION, PHYSICAL REVIEW LETTERS 66: 181 (1991). (10.1103/PhysRevLett.66.181) / PHYSICAL REVIEW LETTERS (1991)
Persson, B. N. J., Computations for the Nano-Scale: 21 (1993). / Computations for the Nano-Scale (1993)
10.1126/science.245.4923.1223
SMITH E.D. unpublished data.
SOKOLOFF, J.B., THEORY OF ENERGY-DISSIPATION IN SLIDING CRYSTAL-SURFACES, PHYSICAL REVIEW B 42: 760 (1990). (10.1103/PhysRevB.42.760) / PHYSICAL REVIEW B (1990)
STEELE, W.A., PHYSICAL INTERACTION OF GASES WITH CRYSTALLINE SOLIDS .1. GAS-SOLID ENERGIES AND PROPERTIES OF ISOLATED ADSORBED ATOMS, SURFACE SCIENCE 36: 317 (1973). (10.1016/0039-6028(73)90264-1) / SURFACE SCIENCE (1973)
Taub H Phase Transitions in Surface Films 2 (1990). (10.1007/978-1-4684-5970-8)
THOMPSON, P.A., SHEAR-FLOW NEAR SOLIDS - EPITAXIAL ORDER AND FLOW BOUNDARY-CONDITIONS, PHYSICAL REVIEW A 41: 6830 (1990). (10.1103/PhysRevA.41.6830) / PHYSICAL REVIEW A (1990)
THOMPSON, P.A., PHASE-TRANSITIONS AND UNIVERSAL DYNAMICS IN CONFINED FILMS, PHYSICAL REVIEW LETTERS 68: 3448 (1992). (10.1103/PhysRevLett.68.3448) / PHYSICAL REVIEW LETTERS (1992)
WATTS, E.T., EXPERIMENTAL-OBSERVATION OF INTERFACIAL SLIPPAGE AT THE BOUNDARY OF MOLECULARLY THIN-FILMS WITH GOLD SUBSTRATES, PHYSICAL REVIEW B 41: 3466 (1990). (10.1103/PhysRevB.41.3466) / PHYSICAL REVIEW B (1990)

Dates

Type	When
Created	18 years, 10 months ago (Oct. 5, 2006, 8:01 p.m.)
Deposited	1 year, 7 months ago (Jan. 12, 2024, 5:05 p.m.)
Indexed	1 week, 1 day ago (Aug. 12, 2025, 6:07 p.m.)
Issued	30 years, 11 months ago (Aug. 26, 1994)
Published	30 years, 11 months ago (Aug. 26, 1994)
Published Print	30 years, 11 months ago (Aug. 26, 1994)

Funders 0

None

BibTeX

@article{Cieplak_1994, title={Molecular Origins of Friction: The Force on Adsorbed Layers}, volume={265}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.265.5176.1209}, DOI={10.1126/science.265.5176.1209}, number={5176}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Cieplak, Marek and Smith, Elizabeth D. and Robbins, Mark O.}, year={1994}, month=aug, pages={1209–1212} }

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