Controlling the energy flow in nonlinear lattices: a model for a thermal rectifier

Details Controlling the energy flow in nonlinear lattices: a model for a thermal rectifier Controlling the energy flow in nonlinear lattices: a model for a thermal rectifier

2002-01-09

arxiv.org/abs/cond-mat/0201125v2

Phys. Rev. Lett. 88, 094302-1-4 (2002)

Physics

Condensed Matter

Statistical Mechanics

4 pages with figures included. Phys. Rev. Lett., to be published (Ref. [10] corrected)

Scientific paper

10.1103/PhysRevLett.88.094302

We address the problem of heat conduction in 1-D 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.

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