Journal Article

PreJuSER-48859

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Adsorbate-Induced Enhancement of Electrostatic Noncontact Friction

Volokitin, A. I. ; Persson, B. N. J.FZJ*

2005
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/1427  doi:10.1103/PhysRevLett.94.086104

Abstract: We study the noncontact friction between an atomic force microscope tip and a metal substrate in the presence of bias voltage. The friction is due to energy losses in the sample created by the electromagnetic field from the oscillating charges induced on the tip surface by the bias voltage. We show that the friction can be enhanced by many orders of magnitude if the adsorbate layer can support acoustic vibrations. The theory predicts the magnitude and the distance dependence of friction in good agreement with recent puzzling noncontact friction experiment [B. C. Stipe, H. J. Mamin, T. D. Stowe, T. W. Kenny, and D. Rugar, Phys. Rev. Lett. 87, 096801 (2001).]. We demonstrate that even an isolated adsorbate can produce high enough friction to be measured experimentally.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Theorie I (IFF-TH-I)

Research Program(s):

1. Kondensierte Materie (M02)

Appears in the scientific report 2005
Notes: This version is available at the following Publisher URL: http://prl.aps.org

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