Abstract
The Ginzburg-Landau theory is generalized to the case when the Cooper pairs can form several condensates, i.e., accumulate in several different states. A homogeneous mixed state is obtained for type-II superconductors with a constant density of “superconducting electrons” and constant magentic field in a bulk sample. This state turns out to be thermodynamically more favorable than the vortex structure of Abrikosov.
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Batyev, É.G. On the theory of the mixed state of type-II superconductors. J Low Temp Phys 4, 551–561 (1971). https://doi.org/10.1007/BF00631134
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DOI: https://doi.org/10.1007/BF00631134