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Temperature and Purity Dependence of the Superconducting Critical Field, Hc-2. II

Jul 8, 1966
6 pages
Published in:
  • Phys.Rev. 147 (1966) 288-294
DOI:
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Abstract: (APS)
A rigorous gauge-invariant solution of the linearized Gor'kov equations is presented, yielding the complete temperature and electron-mean-free-path dependences of the upper critical magnetic field Hc2 of a bulk type-II superconductor. Comparison is made with previously known results in special cases, and it is pointed out that localized approximations such as the "dirty," or the Ginzburg-Landau, limits represent the leading term in an asymptotic rather than convergent, expansion.