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Casimir Forces between ThermallyActivated Nanocomposites

Published online by Cambridge University Press:  15 March 2011

Raúl Esquivel-Sirvent ,
Carlos Villarreal  and
Cecilia Noguez
Raúl Esquivel-Sirvent
Affiliation:
Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, Ciudad Universitaria, México, DF, 04510, México
Carlos Villarreal
Affiliation:
Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, Ciudad Universitaria, México, DF, 04510, México
Cecilia Noguez
Affiliation:
Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, Ciudad Universitaria, México, DF, 04510, México
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Abstract

We present a theoretical study of the modification of Casimir forces between nanocomposite slabs that exhibit a metal-dielectric transition. In particular, we consider slabs made of VO2 precipitates in sapphire, whose effective dielectric function is calculated within a mean field approximation. The results for the Casimir force as a function of the separation of the slabs, show that at a fixed separation the magnitude of the force changes as temperature increases from 300 K to 355 K. The possible applications of these results to Casimir devices is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 703: Symposia U/V – Nanophase and Nanocomposite Materials IV , 2001 , V3.3
Copyright
Copyright © Materials Research Society 2002

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References

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