Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2009-03-05
EPL 78(2007)44005
Physics
Condensed Matter
Other Condensed Matter
13 pages, 5 figures
Scientific paper
10.1209/0295-5075/78/44005
For the first time, new important features of the fluctuation electromagnetic interaction between a small conducting particle and a smooth surface of polarizable medium (both dielectric and metallic) are worked out. The particle is characterized by classical electric and magnetic polarizabilities. The temperature dependence and retardation effects are explicitly taken into account. The resulting interaction force between a metallic particle and the surface of metal proves to be determined to great extent by magnetic coupling and reveals specific dependences on distance, temperature, particle radius and material properties of contacting materials. Numerical estimations are given in the case of a Cu particle above a smooth Cu substrate at different particle radius and temperature of the system.
Dedkov G. V.
Kyasov Arthur
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