TY - JOUR
T1 - Spin-boson thermal rectifier
AU - Segal, Dvira
AU - Nitzan, Abraham
PY - 2005/1/28
Y1 - 2005/1/28
N2 - 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 nonseparable model suitable for a stronger system-bath interaction. Both models show asymmetric (rectifying) heat conduction when the couplings to the heat reservoirs are different.
AB - 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 nonseparable model suitable for a stronger system-bath interaction. Both models show asymmetric (rectifying) heat conduction when the couplings to the heat reservoirs are different.
UR - http://www.scopus.com/inward/record.url?scp=18044393820&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.94.034301
DO - 10.1103/PhysRevLett.94.034301
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AN - SCOPUS:18044393820
SN - 0031-9007
VL - 94
JO - Physical Review Letters
JF - Physical Review Letters
IS - 3
M1 - 034301
ER -