Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.nantod.2010.02.002
Title: Violation of Fourier's law and anomalous heat diffusion in silicon nanowires
Authors: Yang, N. 
Zhang, G.
Li, B. 
Keywords: Heat conduction
Heat diffusion
Low-dimensional system
Nanowires
Issue Date: Apr-2010
Citation: Yang, N., Zhang, G., Li, B. (2010-04). Violation of Fourier's law and anomalous heat diffusion in silicon nanowires. Nano Today 5 (2) : 85-90. ScholarBank@NUS Repository. https://doi.org/10.1016/j.nantod.2010.02.002
Abstract: We study heat conduction and diffusion in silicon nanowires (SiNWs) systematically by using non-equilibrium molecular dynamics. It is found that the thermal conductivity (κ) of SiNWs diverges with the length as, κ ∝ Lβ, even when the length is up to 1.1 μm which is much longer than the phonon mean free path. The dependences of β on temperature and length are also discussed. Moreover, an anomalous heat diffusion is observed which is believed to be responsible for the length dependent thermal conductivity. Our results provide strong evidence that Fourier's law of heat conduction is not valid in low-dimensional nanostructures. © 2010 Elsevier Ltd. All rights reserved.
Source Title: Nano Today
URI: http://scholarbank.nus.edu.sg/handle/10635/98561
ISSN: 17480132
DOI: 10.1016/j.nantod.2010.02.002
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

150
checked on Oct 14, 2019

WEB OF SCIENCETM
Citations

141
checked on Oct 14, 2019

Page view(s)

45
checked on Oct 12, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.