Abstract
The nonequilibrium distribution functions of quasiparticles and phonons in superconductors are calculated for various cases. The conditions at which the nonequilibrium distributions exist are found. The dependences of the temperature and concentration of excitations on the pumping intensity, the sample thickness, and other parameters of the superconductor are calculated. In the current state the dependences of these quantities on the superfluid velocity and the current are investigated, and it is found that the dependenceT(v s ) has a minimum, and the current for vs>v (1)so becomes negative. It is also shown that in the nonequiibrium superconductor the state withv *s ≠ 0 andJ(v * s )=0 may exist. We have determined the nonequilibrium distribution function for a tunnel junction and investigated theV-A characteristic at some conditions for which an absolute negative resistance may exist.
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Aronov, A.G., Spivak, B.Z. Nonequilibrium distributions in superconductors. J Low Temp Phys 29, 149–165 (1977). https://doi.org/10.1007/BF00659093
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DOI: https://doi.org/10.1007/BF00659093