Theory of the thermal boundary resistance between dissimilar lattices

Journal Article · Mon Oct 15 04:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.7386· OSTI ID:6057203

Pettersson, S; Mahan, G D ^[1]

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

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.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6057203
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:12; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

656002* -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
CUBIC LATTICES
FCC LATTICES
INTERFACES
KAPITZA RESISTANCE
LATTICE VIBRATIONS
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
THERMAL BOUNDARY RESISTANCE
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES