Nanoscale heat flux between anisotropic uniaxial media
Mesoscale and Nanoscale Physics
2011-09-07 v1 Quantum Physics
Abstract
We present a theoretical study of near-field heat transfer between two anisotropic materials separated by a small vacuum gap and maintained in a stationary non-equilibrium thermal situation. By combining standard stochastic electrodynamics and the Maxwell-Garnett description for effective media, we show that heat flux can be significantly enhanced by air inclusions. This result is explained by : (a) the presence of extraordinary surface waves that give rise to supplementary channels for heat transfer throughout the gap, (b) an increase in the contribution given by the ordinary surface waves at resonance, (c) and the appearance of frustrated modes over a broad spectral range.
Keywords
Cite
@article{arxiv.1103.2361,
title = {Nanoscale heat flux between anisotropic uniaxial media},
author = {Svend-Age Biehs and Philippe Ben-Abdallah and Felipe S. S. Rosa and Karl Joulain and Jean-Jacques Greffet},
journal= {arXiv preprint arXiv:1103.2361},
year = {2011}
}