Please use this identifier to cite or link to this item: https://doi.org/10.1209/0295-5075/78/34001
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dc.titleTemperature dependence of thermal conductivity in 1D nonlinear lattices
dc.contributor.authorLi, N.
dc.contributor.authorLi, B.
dc.date.accessioned2014-10-16T09:44:28Z
dc.date.available2014-10-16T09:44:28Z
dc.date.issued2007-05-01
dc.identifier.citationLi, N., Li, B. (2007-05-01). Temperature dependence of thermal conductivity in 1D nonlinear lattices. EPL 78 (3) : -. ScholarBank@NUS Repository. https://doi.org/10.1209/0295-5075/78/34001
dc.identifier.issn02955075
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98223
dc.description.abstractWe examine the temperature dependence of thermal conductivity of one-dimensional nonlinear (anharmonic) lattices with and without on-site potential. It is found from computer simulation that the heat conductivity depends on temperature via the strength of nonlinearity. Based on this correlation, we make a conjecture in the effective phonon theory that the mean-free-path of the effective phonon is inversely proportional to the strength of nonlinearity. We demonstrate analytically and numerically that the temperature behavior of the heat conductivity κ 1/T is not universal for 1D harmonic lattices with a small nonlinear perturbation. The computer simulations of temperature dependence of heat conductivity in general 1D nonlinear lattices are in good agreement with our theoretic predictions. Possible experimental tests are discussed. © Europhysics Letters Association.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1209/0295-5075/78/34001
dc.description.sourcetitleEPL
dc.description.volume78
dc.description.issue3
dc.description.page-
dc.identifier.isiut000246426500008
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