Negative differential thermal resistance induced by ballistic transport

Wei Rong Zhong; Ping Yang; Bao Quan Ai; Zhi Gang Shao; Bambi Hu

doi:10.1103/PhysRevE.79.050103

Negative differential thermal resistance induced by ballistic transport

Wei Rong Zhong^*, Ping Yang, Bao Quan Ai, Zhi Gang Shao, Bambi Hu

^*Corresponding author for this work

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

40 Citations (Scopus)

Abstract

Using nonequilibrium molecular-dynamics simulations, we study the temperature dependence of the negative differential thermal resistance that appears in two-segment Frenkel-Kontorova lattices. We apply the theoretical method based on Landauer equation to obtain the relationship between the heat current and the temperature, which states a fundamental interpretation about the underlying physical mechanism of the negative differential thermal resistance. The temperature profiles and transport coefficients are demonstrated to explain the crossover from diffusive to ballistic transport. The finite-size effect is also discussed.

Original language	English
Article number	050103
Number of pages	4
Journal	Physical Review E
Volume	79
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevE.79.050103
Publication status	Published - 20 May 2009

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title = "Negative differential thermal resistance induced by ballistic transport",

abstract = "Using nonequilibrium molecular-dynamics simulations, we study the temperature dependence of the negative differential thermal resistance that appears in two-segment Frenkel-Kontorova lattices. We apply the theoretical method based on Landauer equation to obtain the relationship between the heat current and the temperature, which states a fundamental interpretation about the underlying physical mechanism of the negative differential thermal resistance. The temperature profiles and transport coefficients are demonstrated to explain the crossover from diffusive to ballistic transport. The finite-size effect is also discussed.",

author = "Zhong, {Wei Rong} and Ping Yang and Ai, {Bao Quan} and Shao, {Zhi Gang} 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 grants from the Hong Kong Research Grants Council (RGC) and the Hong Kong Baptist University Faculty Research Grant (FRG). Publisher copyright: {\textcopyright} 2009 American Physical Society",

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T1 - Negative differential thermal resistance induced by ballistic transport

AU - Zhong, Wei Rong

AU - Yang, Ping

AU - Ai, Bao Quan

AU - Shao, Zhi Gang

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 grants from the Hong Kong Research Grants Council (RGC) and the Hong Kong Baptist University Faculty Research Grant (FRG). Publisher copyright: © 2009 American Physical Society

PY - 2009/5/20

Y1 - 2009/5/20

N2 - Using nonequilibrium molecular-dynamics simulations, we study the temperature dependence of the negative differential thermal resistance that appears in two-segment Frenkel-Kontorova lattices. We apply the theoretical method based on Landauer equation to obtain the relationship between the heat current and the temperature, which states a fundamental interpretation about the underlying physical mechanism of the negative differential thermal resistance. The temperature profiles and transport coefficients are demonstrated to explain the crossover from diffusive to ballistic transport. The finite-size effect is also discussed.

AB - Using nonequilibrium molecular-dynamics simulations, we study the temperature dependence of the negative differential thermal resistance that appears in two-segment Frenkel-Kontorova lattices. We apply the theoretical method based on Landauer equation to obtain the relationship between the heat current and the temperature, which states a fundamental interpretation about the underlying physical mechanism of the negative differential thermal resistance. The temperature profiles and transport coefficients are demonstrated to explain the crossover from diffusive to ballistic transport. The finite-size effect is also discussed.

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U2 - 10.1103/PhysRevE.79.050103

DO - 10.1103/PhysRevE.79.050103

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SN - 2470-0045

VL - 79

JO - Physical Review E

JF - Physical Review E

IS - 5

M1 - 050103

ER -

Negative differential thermal resistance induced by ballistic transport

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