Minimum thermal conductivity of superlattices

Authors
Simkin, MV Mahan, GD
Citation
Mv. Simkin et Gd. Mahan, Minimum thermal conductivity of superlattices, PHYS REV L, 84(5), 2000, pp. 927-930
Citations number
19
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
84
Issue
5
Year of publication
2000
Pages
927 - 930
Database
ISI
SICI code
0031-9007(20000131)84:5<927:MTCOS>2.0.ZU;2-D
Abstract
The phonon thermal conductivity of a multilayer is calculated for transport perpendicular to the layers. There is a crossover between particle transpo rt for thick layers to wave transport for thin layers. The calculations sho w that the conductivity has a minimum value for a layer thickness somewhat smaller then the mean free path of the phonons.