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Analytical law for size effects on thermal conductivity of nanostructures

Source: Phys. Rev. B 81, 073304 (2010); doi:10.1103/PhysRevB.81.073304

Published 23 February 2010

PACS
  • 66.70.-f
    Nonelectronic thermal conduction and heat-pulse propagation in solids
  • 02.70.Ns
    Molecular dynamics and particle methods
  • 05.60.Cd
    Classical transport
  • 44.10.+i
    Heat conduction
  • YEAR: 2010
PUBLICATION DATA
ISSN:
1553-9644 (online)
Publisher:
AIP is a member of CrossRef APS
X. W. Zhou, R. E. Jones, and S. Aubry
Mechanics of Materials Department, Sandia National Laboratories, Livermore, California 94550, USA
The thermal conductivity of a nanostructure is sensitive to its dimensions. A simple analytical scaling law that predicts how conductivity changes with the dimensions of the structure, however, has not been developed. The lack of such a law is a hurdle in “phonon engineering” of many important applications. Here, we report an analytical scaling law for thermal conductivity of nanostructures as a function of their dimensions. We have verified the law using very large molecular dynamics simulations. ©2010 The American Physical Society
History: Received 27 October 2009; published 23 February 2010
Permalink: http://link.aps.org/abstract/PRB/v81/e073304
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