Dynamic force spectroscopy: A Fokker-Planck approach

O. K. Dudko*, A. E. Filippov, J. Klafter, M. Urbakh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this Letter we show that recent observations using dynamic force spectroscopy can be described by a generalized Tomlinson model which includes the contribution of an external noise. We show that the measured friction forces depend on the microscopic potential and dissipation inherent to the system as well as on the mechanical properties of the setup (i.e. spring constant) and the external noise. Tuning the noise and spring constant offers ways to extract information about the microscopic properties.

Original languageEnglish
Pages (from-to)499-504
Number of pages6
JournalChemical Physics Letters
Volume352
Issue number5-6
DOIs
StatePublished - 6 Feb 2002

Funding

FundersFunder number
TMR-SISITOMAS
Bloom's Syndrome Foundation
Israel Science Foundation

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