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Anomalous Heat Conduction in One-Dimensional Dimerized Lattices |
| LI Xin-Xia 1,2;TANG Yi2 |
| 1Department of Mathematics and Physics, Nanhua University, Hengyang 4210012Institute of Modern Physics, Xiangtan University, Xiangtan 411105 |
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| Cite this article: |
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LI Xin-Xia, TANG Yi 2007 Chin. Phys. Lett. 24 898-901 |
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Abstract The process of heat conduction in one-dimensional dimerized systems is studied by means of numerical simulation. Taking into account the difference between the strong bond and the weak one of the systems, our calculation indicates that heat conduction in the lattice is anomalous. For the typical parameter related to a real physical system, the divergent exponent is shown to be in agreement with that predicted by the mode-coupling theory. Moreover, our study shows that the homogeneous chain is the best thermal conductor.
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| Keywords:
05.70.Ln
44.10.+i
66.70.+f
05.60.-k
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Received: 30 October 2006
Published: 26 March 2007
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