Volume 78, Number 4, May 2007
|Number of page(s)||6|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||09 May 2007|
Features of the fluctuation-electromagnetic interaction between a small conducting particle and polarizable medium
Nanoscale Physics Group, Kabardino-Balkarian State University - Nalchik, 360004, Russian Federation
Corresponding authors: email@example.com firstname.lastname@example.org
Accepted: 5 April 2007
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.
PACS: 41.20.-q – Applied classical electromagnetism / 42.50.Pq – Cavity quantum electrodynamics; micromasers / 78.70.-g – Interactions of particles and radiation with matter
© Europhysics Letters Association, 2007
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