Heat conduction in deformable Frenkel-Kontorova lattices: Thermal conductivity and negative differential thermal resistance

Bao Quan Ai; Bambi Hu

doi:10.1103/PhysRevE.83.011131

Heat conduction in deformable Frenkel-Kontorova lattices: Thermal conductivity and negative differential thermal resistance

Bao Quan Ai^*
, Bambi Hu

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

31 Citations (Scopus)

Abstract

Heat conduction through the Frenkel-Kontorova lattices is numerically investigated in the presence of a deformable substrate potential. It is found that the deformation of the substrate potential has a strong influence on heat conduction. The thermal conductivity as a function of the shape parameter is nonmonotonic. The deformation can enhance thermal conductivity greatly, and there exists an optimal deformable value at which thermal conductivity takes its maximum. Remarkably, we also find that the deformation can facilitate the appearance of the negative differential thermal resistance.

Original language	English
Article number	011131
Number of pages	7
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	83
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevE.83.011131
Publication status	Published - 31 Jan 2011

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10.1103/PhysRevE.83.011131

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abstract = "Heat conduction through the Frenkel-Kontorova lattices is numerically investigated in the presence of a deformable substrate potential. It is found that the deformation of the substrate potential has a strong influence on heat conduction. The thermal conductivity as a function of the shape parameter is nonmonotonic. The deformation can enhance thermal conductivity greatly, and there exists an optimal deformable value at which thermal conductivity takes its maximum. Remarkably, we also find that the deformation can facilitate the appearance of the negative differential thermal resistance.",

author = "Ai, \{Bao Quan\} and Bambi Hu",

note = "We would like to thank members of the Centre for Nonlinear Studies for useful discussions. This work was supported in part by Hong Kong Research Grants Council (RGC), the Hong Kong Baptist University Faculty Research Grant (FRG), the National Natural Science Foundation of China (Grant No. 30600122), and Guangdong Provincial Natural Science Foundation (Grant No. 06025073). Publisher copyright: {\textcopyright} 2011 American Physical Society",

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T2 - Thermal conductivity and negative differential thermal resistance

AU - Ai, Bao Quan

AU - Hu, Bambi

N1 - We would like to thank members of the Centre for Nonlinear Studies for useful discussions. This work was supported in part by Hong Kong Research Grants Council (RGC), the Hong Kong Baptist University Faculty Research Grant (FRG), the National Natural Science Foundation of China (Grant No. 30600122), and Guangdong Provincial Natural Science Foundation (Grant No. 06025073). Publisher copyright: © 2011 American Physical Society

PY - 2011/1/31

Y1 - 2011/1/31

N2 - Heat conduction through the Frenkel-Kontorova lattices is numerically investigated in the presence of a deformable substrate potential. It is found that the deformation of the substrate potential has a strong influence on heat conduction. The thermal conductivity as a function of the shape parameter is nonmonotonic. The deformation can enhance thermal conductivity greatly, and there exists an optimal deformable value at which thermal conductivity takes its maximum. Remarkably, we also find that the deformation can facilitate the appearance of the negative differential thermal resistance.

AB - Heat conduction through the Frenkel-Kontorova lattices is numerically investigated in the presence of a deformable substrate potential. It is found that the deformation of the substrate potential has a strong influence on heat conduction. The thermal conductivity as a function of the shape parameter is nonmonotonic. The deformation can enhance thermal conductivity greatly, and there exists an optimal deformable value at which thermal conductivity takes its maximum. Remarkably, we also find that the deformation can facilitate the appearance of the negative differential thermal resistance.

UR - https://www.scopus.com/pages/publications/79951714194

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DO - 10.1103/PhysRevE.83.011131

M3 - Journal article

AN - SCOPUS:79951714194

SN - 1539-3755

VL - 83

JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

IS - 1

M1 - 011131

ER -

Heat conduction in deformable Frenkel-Kontorova lattices: Thermal conductivity and negative differential thermal resistance

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