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Intriguing Heat Conduction of a Polymer Chain | | Jian-Sheng Wang
; Baowen Li
; | | Date: |
22 Aug 2003 | | Journal: | Phys. Rev. Lett. 92 (2004) 074302. | | Subject: | Statistical Mechanics | cond-mat.stat-mech | | Abstract: | We study heat conduction in a one-dimensional chain of particles with longitudinal as well as transverse motions. The particles are connected by two-dimensional harmonic springs together with bending angle interactions. Using equilibrium and nonequilibrium molecular dynamics, three types of thermal conducting behaviors are found: a logarithmic divergence with system sizes for large transverse coupling, 1/3 power-law at intermediate coupling, and 2/5 power-law at low temperatures and weak coupling. The results are consistent with a simple mode-coupling analysis of the same model. The 1/3 power-law divergence should be a generic feature for models with transverse motions. | | Source: | arXiv, cond-mat/0308445 | | Services: | Forum | Review | PDF | Favorites | |
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