Mesoscopic Thermal Transport through a Weak Link
arXiv:cond-mat/0107166 · doi:10.1016/S0921-4526(02)00539-2
Abstract
We consider mesoscopic thermal transport between two bulk dielectrics joined by a narrow wire or weak mechanical link. In the ``tunneling'' regime where the phonon transmission probability through the link is small and the thermal conductance is much less than the value for a single channel, the thermal current is determined by a product of the local vibrational spectral densities of the two bodies. We derive an expression for the thermal current that is a thermal analog of the well-known formula for the electrical current through a tunneling barrier.
Phonons 2001 Conference Proceedings, Revtex