Transport properties of nonequilibrium superconductors
1974; American Physical Society; Volume: 9; Issue: 11 Linguagem: Inglês
10.1103/physrevb.9.4769
ISSN0556-2805
AutoresJhy-Jiun Chang, D. J. Scalapino,
Tópico(s)Superconductivity in MgB2 and Alloys
ResumoThe model developed by Owen and Scalapino for superconductors with excess quasiparticles at thermal equilibrium with the lattice was adapted to investigate the transport properties of the nonequilibrium superconductors. Specifically, we have calculated within this model the frequency and temperature dependence of the ultrasonic-attenuation coefficient, the dynamic electric conductivity, and the temperature dependence of the nuclear-spin relaxation time. It is found that in some cases even a small number of excess quasiparticles can change the transport property drastically.
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