Published October 15, 1990 | Version v1
Journal article

Theory of the thermal boundary resistance between dissimilar lattices

  • 1. Department of Physics and Astronomy, University of Tennessee, Knoxville, TN (USA)
  • 2. Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN (USA)

Description

Continuum acoustics allows only three different phonons to be reflected and transmitted for each phonon that is incident on an interface between two materials. We show that a lattice-dynamical theory for dissimilar lattices allows more phonons to be generated at the interface since we must introduce a larger unit cell. Numerical examples are given for the thermal boundary conductivity between two fcc crystals. The additional high-frequency phonons are found to carry an appreciable amount of the reflected and transmitted heat

Additional details

Publishing Information

Journal Title
Physical Review, B: Condensed Matter
Journal Volume
42
Journal Issue
12
Series
Phys. Rev., B: Condens. Matter.
Journal Page Range
7386-7390
ISSN
0163-1829
CODEN
PRBMD