Superconducting State Stability

  • R. G. Mints
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 40)


We present a review of new results concerning the superconducting state stability under nonstationary conditions. We consider the effect of small perturbations of the temperature δT and the electric field δ E. We present a general approach to the problem of superconducting state stability in a multifilamentary composite wire carrying a time—dependent transport current I(t). We derive an equation determining the current-carrying capacity of this wire, i.e., the maximum superconducting current, I m . We show that I m depends on the physical properties of the multifilamentary superconducting composite, the geometry of the multifilamentary area, the cooling conditions, and the transport current ramp rate İ. We consider a quench propagation in a multifilamentary composite wire carrying a time—dependent transport current İ and the superconducting state instability on the normal zone propagation velocity v. We present an equation determining v in a multifilamentary composite wire as a function of İ.


Critical Current Density Superconducting State Temperature Perturbation Nonstationary Condition Longitudinal Resistivity 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • R. G. Mints
    • 1
  1. 1.School of Physics and Astronomy Raymond and Beverly Sacler Faculty of Exact SciencesTel—Aviv UniversityRamat-AvivIsrael

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