THERMAL-CONDUCTIVITY OF RARE-GAS CRYSTALS - THE ROLE OF 3-PHONON PROCESSES

Authors
OMINI M SPARAVIGNA A
Citation
M. Omini et A. Sparavigna, THERMAL-CONDUCTIVITY OF RARE-GAS CRYSTALS - THE ROLE OF 3-PHONON PROCESSES, Philosophical magazine. B. Physics of condensed matter. Structural, electronic, optical and magnetic properties, 68(5), 1993, pp. 767-785
Citations number
25
Categorie Soggetti
Physics, Applied
Journal title
Philosophical magazine. B. Physics of condensed matter. Structural, electronic, optical and magnetic properties → ACNP
ISSN journal
09586644
Volume
68
Issue
5
Year of publication
1993
Pages
767 - 785
Database
ISI
SICI code
0958-6644(1993)68:5<767:TORC-T>2.0.ZU;2-K
Abstract
The contribution of three-phonon processes to the thermal conductivity of dielectric crystals is rigorously described in the frame of an iso tropic model and expressed in terms or the interatomic pair potential. In this way the final formula does not contain adjustable parameters and represents a reliable tool to evaluate the weight of the above pro cesses: for Ar and Kr they are shown to be sufficient to explain the e xperimental values of the conductivity.