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Phys. Rev. Lett. 91, 106101 (2003) [4 pages]

Resonant Photon Tunneling Enhancement of the van der Waals Friction

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A. I. Volokitin1,2 and B. N. J. Persson1
1Institut für Festkorperforschung, Forschungszentrum, Jülich D-52425, Germany
2Samara State Technical University, 443100 Samara, Russia

Received 1 May 2003; published 4 September 2003

We study the van der Waals friction between two flat metal surfaces in relative motion. For good conductors, we find that normal relative motion gives a much larger friction than for parallel relative motion. The friction may increase by many orders of magnitude when the surfaces are covered by adsorbates, or can support low-frequency surface plasmons. In this case, the friction is determined by resonant photon tunneling between adsorbate vibrational modes, or surface plasmon modes.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.106101
DOI:
10.1103/PhysRevLett.91.106101
PACS:
68.35.Af, 68.37.Ps, 73.20.Mf