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Casimir-Lifshitz in...
Casimir-Lifshitz interaction between ZnO and SiO2 nanorods in bromobenzene turns repulsive at intermediate separations due to retardation effects
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- Boström, Mathias (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska högskolan
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- Sernelius, Bo (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska högskolan
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- Baldissera, Gustavo (author)
- KTH,Tillämpad materialfysik,Royal Institute of Technology
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- Persson, Clas (author)
- KTH,Tillämpad materialfysik,Royal Institute of Technology
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- Ninham, Barry W (author)
- Australian National University
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(creator_code:org_t)
- American Physical Society, 2012
- 2012
- English.
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In: Physical Review A. Atomic, Molecular, and Optical Physics. - : American Physical Society. - 1050-2947 .- 1094-1622. ; 85:4, s. 044702-
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Abstract
Subject headings
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- We consider the interaction between a ZnO nanorod and a SiO2 nanorod in bromobenzene. Using optical data for the interacting objects and ambient we calculate the force (from short-range attractive van der Waals force to intermediate-range repulsive Casimir-Lifshitz force to long-range entropically driven attraction). The nonretarded van der Waals interaction is attractive at all separations. We demonstrate a retardation-driven repulsion at intermediate separations. At short separations (in the nonretarded limit) and at large separations (in the classical limit) the interaction is attractive. These effects can be understood from an analysis of multiple crossings of the dielectric functions of the three media as functions of imaginary frequencies.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- TECHNOLOGY
- TEKNIKVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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