Casimir force between atomically thin gold films
2013 (English)In: European Physical Journal B: Condensed Matter Physics, ISSN 1434-6028, E-ISSN 1434-6036, Vol. 86, 43-46 p.Article in journal (Refereed) Published
We have used density functional theory to calculate the anisotropic dielectric functions forultrathin gold sheets (composed of 1, 3, 6, and 15 atomic layers). Such films are important components innano-electromechanical systems. When using correct dielectric functions rather than bulk gold dielectricfunctions we predict an enhanced attractive Casimir-Lifshitz force (at most around 20%) between twoatomically thin gold sheets. For thicker sheets the dielectric properties and the corresponding Casimirforces approach those of gold half-spaces. The magnitude of the corrections that we predict should, withinthe today’s level of accuracy in Casimir force measurements, be clearly detectable.
Place, publisher, year, edition, pages
Springer, 2013. Vol. 86, 43-46 p.
Casimir, thin films
IdentifiersURN: urn:nbn:se:liu:diva-88486DOI: 10.1140/epjb/e2012-31051-9ISI: 000316064100014OAI: oai:DiVA.org:liu-88486DiVA: diva2:604285
FunderSwedish Research Council, 90499401Swedish Research Council, 70529001