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Title: Heat conduction in a three dimensional anharmonic crystal
Authors: Saito, Keiji
Dhar, Abhishek
Issue Date: 26-Jan-2010
Publisher: American Physical Society
Citation: Physical Review Letters, 2010, Vol.104, p040601
Abstract: We perform nonequilibrium simulations of heat conduction in a three dimensional anharmonic lattice. By studying slabs of length N and width W, we examine the crossover from one dimensional to three dimensional behavior of the thermal conductivity κ. We find that for large N, the crossover takes place at a small value of the aspect ratio W/N. From our numerical data we conclude that the three dimensional system has a finite nondiverging κ and thus provides the first verification of Fourier’s law in a system without pinning
Description: Open Access
ISSN: 1079-7114 (Online)
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Copyright: 2010 The American Physical Society
Appears in Collections:Research Papers (TP)

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