Heat transfer between nanoparticles: Thermal conductance for near-field interactions
Data(s) |
26/01/2010
26/01/2010
2008
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Resumo |
We analyze the heat transfer between two nanoparticles separated by a distance lying in the near-field domain in which energy interchange is due to the Coulomb interactions. The thermal conductance is computed by assuming that the particles have charge distributions characterized by fluctuating multipole moments in equilibrium with heat baths at two different temperatures. This quantity follows from the fluctuation-dissipation theorem for the fluctuations of the multipolar moments. We compare the behavior of the conductance as a function of the distance between the particles with the result obtained by means of molecular dynamics simulations. The formalism proposed enables us to provide a comprehensive explanation of the marked growth of the conductance when decreasing the distance between the nanoparticles. |
Formato |
7 p. application/pdf |
Identificador |
0163-1829 http://hdl.handle.net/2445/10932 558295 |
Idioma(s) |
eng |
Publicador |
The American Physical Society |
Relação |
Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.77.155417 Physical Review B, 2008, vol. 77, núm. 15, p. 155417-1-155417-7 |
Direitos |
(c) The American Physical Society, 2008 info:eu-repo/semantics/openAccess |
Palavras-Chave | #Química física #Matèria condensada #Propietats tèrmiques #Physical chemistry #Condensed matter #Thermal properties |
Tipo |
info:eu-repo/semantics/article |