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Ultrathin metallic coatings can induce quantum levitation between nanosurfaces
Norwegian University of Science and Technology, Norway Australian National University, Australia .
Australian National University, Australia .
Norwegian University of Science and Technology, Norway .
Royal Institute Technology, Sweden University of Oslo, Norway .
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2012 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 100, no 25, 253104- p.Article in journal (Refereed) Published
Abstract [en]

There is an attractive Casimir-Lifshitz force between two silica surfaces in a liquid (bromobenze or toluene). We demonstrate that adding an ultrathin (5-50 angstrom) metallic nanocoating to one of the surfaces results in repulsive Casimir-Lifshitz forces above a critical separation. The onset of such quantum levitation comes at decreasing separations as the film thickness decreases. Remarkably, the effect of retardation can turn attraction into repulsion. From that we explain how an ultrathin metallic coating may prevent nanoelectromechanical systems from crashing together.

Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2012. Vol. 100, no 25, 253104- p.
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Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-79698DOI: 10.1063/1.4729822ISI: 000305676400073OAI: oai:DiVA.org:liu-79698DiVA: diva2:544108
Available from: 2012-08-13 Created: 2012-08-13 Last updated: 2017-12-07

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Sernelius, Bo

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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