Diffraction-limited phonon thermal conductance of nanoconstrictions
Publication Type
Journal Article
Date Published
01/2007
Authors
DOI
Abstract
Thermal transport across nanosized constrictions is calculated considering wave effects. It is shown that Rayleigh-type phonon diffraction reduces thermal transport across nanosized constrictions at low temperatures. We show that for aT/vDebye<0.01×10−9KsaT∕vDebye<0.01×10−9Ks, where aa is the radius of the constriction, TT the temperature, and vDebyevDebye the Debye velocity of the solid material, diffraction effects are important.
Journal
Applied Physics Letters
Volume
91
Year of Publication
2007
URL
Issue
14
ISSN
0003-6951