Adiabatic Magnetization of Superconductors as a High-Performance Cooling Mechanism

Details Adiabatic Magnetization of Superconductors as a High-Performance Cooling Mechanism Adiabatic Magnetization of Superconductors as a High-Performance Cooling Mechanism

2008-11-25

arxiv.org/abs/0811.4127v1

Phys. Rev. B 80 024503 (2009)

Physics

Condensed Matter

Superconductivity

4 pages, 3 color figures

Scientific paper

10.1103/PhysRevB.80.024503

The adiabatic magnetization of a superconductor is a cooling principle proposed in the 30s, which has never been exploited up to now. Here we present a detailed dynamic description of the effect, computing the achievable final temperatures as well as the process timescales for different superconductors in various regimes. We show that, although in the experimental conditions explored so far the method is in fact inefficient, a suitable choice of initial temperatures and metals can lead to unexpectedly large cooling effect, even in the presence of dissipative phenomena. Our results suggest that this principle can be re-envisaged today as a performing refrigeration method to access the microK regime in nanodevices.

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