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Phys. Rev. Lett. 88, 094302 (2002) [4 pages]

Controlling the Energy Flow in Nonlinear Lattices: A Model for a Thermal Rectifier

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M. Terraneo1,3, M. Peyrard2, and G. Casati1,3,4
1International Center for the Study of Dynamical Systems, Universitá degli Studi dell'Insubria, Via Valleggio 11, 22100 Como, Italy
2Laboratoire de Physique, Ecole Normale Supérieure de Lyon, 69364 Lyon Cedex 07, France
3Istituto Nazionale per la Fisica della Materia, Unitá di Como, Via Valleggio 11, 22100 Como, Italy
4Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via Celoria 16, 20133 Milano, Italy

Received 20 October 2001; published 14 February 2002

See accompanying Physics Focus

We address the problem of heat conduction in 1D nonlinear chains; we show that, acting on the parameter which controls the strength of the on-site potential inside a segment of the chain, we induce a transition from conducting to insulating behavior in the whole system. Quite remarkably, the same transition can be observed by increasing the temperatures of the thermal baths at both ends of the chain by the same amount. The control of heat conduction by nonlinearity opens the possibility to propose new devices such as a thermal rectifier.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.094302
DOI:
10.1103/PhysRevLett.88.094302
PACS:
44.10.+i