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Thermodynamics and Excitation Spectrum of a Quasi-One-Dimensional Superconductor in a High Magnetic Field

N. Dupuis
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Abstract

At high magnetic field, the semiclassical approximation which underlies the Ginzburg-Landau theory of the mixed state of type II superconductors breaks down. In a quasi-1D superconductor with an {\it open Fermi surface}, a high magnetic field stabilizes a cascade of superconducting phases which ends in a strong reentrance of the superconducting phase. From a microscopic mean-field model, we determine the thermodynamics and the excitation spectrum of these quantum superconducting phases.

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N. Dupuis. 1994-04-22. Thermodynamics and Excitation Spectrum of a Quasi-One-Dimensional Superconductor in a High Magnetic Field. https://doi.org/10.1103/physrevb.50.9607

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