Heat transport in coupled inhomogeneous chains |
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| Authors: | Hu Tao Bai Meng Hu Ke and Tang Yi |
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| Affiliation: | Department of Physics, Xiangtan University, Xiangtan 411105, China |
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| Abstract: | We first investigate the heat transport in a network model consisting of two coupled dimerized chains. Results indicate that the thermal resistance of each chain increases with the decrease of the mass ratio γ of the two types of atoms. Then, we find, when a light impurity or a heavy one is added in the two coupled homogeneous chains and coupled with a particle of another chain, the interface thermal resistances Rintl and Rintr present different dependences on the mass ratio γ'. Finally, a persistent circulation of energy current is observed in coupled inhomogeneous chains with two pairs of interchain coupling. |
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| Keywords: | heat transport thermal resistance |
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