"Resonance" phenomena in thermal diffusion processes in two-layer structures
Condensed Matter
2009-11-07 v1
Abstract
The dependence on chopper frequency of the effective thermal diffusivity and effective thermal conductivity in photoacoustic experiments is discussed. The theoretical model of a two-layer structure at rear-surface illumination in the high frequency limit is considered. It is shown that the effective thermal diffusivity presents ``resonance'' while the effective thermal conductivity sharply changes its magnitude and sign. Such ``resonant'' behavior strongly depends on the surface thermal conductivities associated with the interface thermal contacts.
Cite
@article{arxiv.cond-mat/0202539,
title = {"Resonance" phenomena in thermal diffusion processes in two-layer structures},
author = {Yu. G. Gurevich and G. N. Logvinov and N. Munoz-Aguirre and L. Martinez-Perez},
journal= {arXiv preprint arXiv:cond-mat/0202539},
year = {2009}
}
Comments
13 pages, 3 figures