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Science. 1989 Sep 15;245(4923):1223-5. doi: 10.1126/science.245.4923.1223.

Shear forces in molecularly thin films.

Science (New York, N.Y.)

M Schoen, C L Rhykerd, D J Diestler, J H Cushman

PMID: 17747884 DOI: 10.1126/science.245.4923.1223

Abstract

Monte Carlo and molecular dynamics methods have been used to study the shearing behavior of an atomic fluid between two plane-parallel solid surfaces having the face-centered cubic (100) structure. A distorted, face-centered cubic solid can form epitaxially between surfaces that are separated by distances of one to five atomic diameters. Under these conditions a critical stress must be overcome to initiate sliding of the surfaces over one another at fixed separation, temperature, and chemical potential. As sliding begins, a layer of solid exits the space between the surfaces and the remaining layers become fluid.

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