Thermodynamics and magnetic field profiles in low-kappa type-II superconductors

Abstract

Two-dimensional low-kappa type-II superconductors are studied numerically within the Eilenberger equations of superconductivity. Depending on the Ginzburg-Landau parameter κ=λ/ξvortex-vortex interaction can be attractive or purely repulsive. The sign of interaction is manifested as a first (second) order phase transition from Meissner to the mixed state. Temperature and field dependence of the magnetic field distribution in low-kappa type-II superconductors with attractive intervortex interaction is calculated. Theoretical results are compared to the experiment.

4 pages, 3 figures

References in corpus (1)

• Interaction of vortices in superconductors with kappa close to 2^(-1/2)

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