1304.3672 (M. J. Martinez-Perez et al.)

Efficient phase-tunable Josephson thermal rectifier    [PDF]

M. J. Martinez-Perez, F. Giazotto

Josephson tunnel junctions are proposed as efficient phase-tunable thermal rectifiers. The latter exploit the strong temperature dependence of the superconducting density of states and phase-dependence of heat currents flowing through Josephson junctions to operate. Remarkably, large heat rectification coefficients up to 800% can potentially be achieved using conventional materials and standard fabrication methods. In addition, these devices allow for the in-situ fine tuning of the thermal rectification magnitude and direction.

View original: http://arxiv.org/abs/1304.3672