Heating of quasiparticles driven by oscillations of the order parameter in short superconducting microbridges

Details Heating of quasiparticles driven by oscillations of the order parameter in short superconducting microbridges Heating of quasiparticles driven by oscillations of the order parameter in short superconducting microbridges

2011-05-27

arxiv.org/abs/1105.5489v1

Physical Review B 83, 224523 (2011)

Physics

Condensed Matter

Superconductivity

7 pages, 6 figures

Scientific paper

We predict 'heating' of quasiparticles driven by order parameter oscillations in the resistive state of short superconducting microbridges. The finite relaxation time of the magnitude of the order parameter $|\Delta|$ and the dependence of the spectral functions both on $|\Delta|$ and the supervelocity $Q$ are the origin of this effect. Our result is opposite to those of Aslamazov and Larkin (Zh. Eks. Teor. Fiz. {\bf 70}, 1340 (1976)) and Schmid, Schon and Tinkham (Phys. Rev. B {\bf 21} 5076 (1980)) where 'cooling' of quasiparticles was found.

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