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Heat Transfer between Two Nanoparticles Through Near Field Interaction

Abstract : We introduce a thermal conductance by using the fluctuation-dissipation theorem to analyze the heat transfer between two nanoparticles separated by a submicron distance. Using either a molecular dynamics technique or a model based on the Coulomb interaction between fluctuating dipoles, we derive the thermal conductance. Both models agree for distances larger than a few diameters. For separation distances smaller than the particle diameter, we find a transition regime characterized by a thermal conductance larger than the contact conductance.
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Submitted on : Monday, January 23, 2006 - 12:03:42 PM
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Gilberto Domingues, Sébastian Voltz, Karl Joulain, Jean-Jacques Greffet. Heat Transfer between Two Nanoparticles Through Near Field Interaction. Physical Review Letters, American Physical Society, 2005, 94, pp.085901-1 - 085901-4. ⟨10.1103/physRevlett.94.085901⟩. ⟨hal-00017502⟩



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