Contrasting Friction and Diffusion in Molecularly Thin Confined Films

Ashis Mukhopadhyay; Jiang Zhao; Sung Chul Bae; Steve Granick

doi:10.1103/PhysRevLett.89.136103

Contrasting Friction and Diffusion in Molecularly Thin Confined Films

Ashis Mukhopadhyay, Jiang Zhao, Sung Chul Bae, Steve Granick

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The translation diffusion in molecularly thin liquids confined within a surface forces apparatus was studied. It was shown that the diffusion coefficient decreases from the edge towards the centre of the Hertzian contact. It was found that friction, the average of an ensemble of molecules, masked heterogeneous molecular mobility.

Original language	English (US)
Journal	Physical review letters
Volume	89
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.89.136103
State	Published - 2002

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General Physics and Astronomy

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10.1103/PhysRevLett.89.136103

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title = "Contrasting Friction and Diffusion in Molecularly Thin Confined Films",

abstract = "The translation diffusion in molecularly thin liquids confined within a surface forces apparatus was studied. It was shown that the diffusion coefficient decreases from the edge towards the centre of the Hertzian contact. It was found that friction, the average of an ensemble of molecules, masked heterogeneous molecular mobility.",

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JO - Physical review letters

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Contrasting Friction and Diffusion in Molecularly Thin Confined Films

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