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<0.01×109KsaT∕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

Organization

Research Areas