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Applied Physics Letters / Volume 91 / Issue 14 / INTERDISCIPLINARY AND GENERAL PHYSICS

Appl. Phys. Lett. 91, 144108 (2007); http://dx.doi.org/10.1063/1.2795795 (3 pages)

Roughness corrections to the Casimir force: The importance of local surface slope

P. J. van Zwol, G. Palasantzas, and J. Th. M. De Hosson

Department of Applied Physics, Netherlands Institute for Metals Research, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands

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(Received 3 September 2007; accepted 19 September 2007; published online 4 October 2007)

This paper concentrates on a study where finite conductivity corrections are included in the theoretical description of the effects of roughness on the Casimir force. The roughness data were taken from gold films evaporated onto silicon and polysterene spheres. We conclude that for a detailed comparison with experimental data, i.e., at the level of at least 5% at short separations below 200 nm, the lateral dimensions of roughness for real films should be included in the theoretical considerations. Moreover, if the rms roughness is considerable, high local surface slopes are shown to have a significant effect on the Casimir force.

© 2007 American Institute of Physics

ERRATUM

  1. Erratum: “Roughness corrections to the Casimir force: The importance of local surface slope” [Appl. Phys. Lett. 91, 144108 (2007)]
    P. J. van Zwol et al.
    Appl. Phys. Lett. 92, 099901 (2008)APPLAB000092000009099901000001

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KEYWORDS and PACS

Keywords

Casimir effect, evaporation, gold, metallic thin films, surface roughness

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2795795

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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