Contrasting Friction and Diffusion in Molecularly Thin Confined Films

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

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
JournalPhysical review letters
Issue number13
StatePublished - 2002

ASJC Scopus subject areas

  • General Physics and Astronomy


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