A spin-boson thermal rectifier

Details A spin-boson thermal rectifier A spin-boson thermal rectifier

2004-05-20

arxiv.org/abs/cond-mat/0405472v1

Phys. Rev. Lett. 94, 034301 (2005).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 3 figures, RevTeX4

Scientific paper

10.1103/PhysRevLett.94.034301

Rectification of heat transfer in nanodevices can be realized by combining the system inherent anharmonicity with structural asymmetry. we analyze this phenomenon within the simplest anharmonic system -a spin-boson nanojunction model. We consider two variants of the model that yield, for the first time, analytical solutions: a linear separable model in which the heat reservoirs contribute additively, and a non-separable model suitable for a stronger system-bath interaction. Both models show asymmetric (rectifying) heat conduction when the couplings to the heat reservoirs are different.

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