Melting of the vortex lattice in layered superconductors
Bo Feng, Zhigang Wu, and Dingping Li
TL;DR
This paper analytically calculates the vortex lattice melting line in layered superconductors, showing good agreement with Monte Carlo simulations and experimental data, thereby providing a theoretical understanding of vortex lattice melting.
Contribution
It presents a one-loop order calculation of the vortex lattice melting line using a phenomenological criterion, bridging theory, simulation, and experiment.
Findings
Quantitative agreement with Monte Carlo simulations.
Reasonable fit to experimental data near Tc.
Analytic method effectively predicts melting behavior.
Abstract
The structure function of the vortex lattice of layered superconductor is calculated to one-loop order. Based on a phenomenological melting criterion concerning the Debye-Waller factor, we calculate the melting line of the vortex lattice, and compare our results to Monte Carlo simulation and experiment. We find that our results are quantitatively in good agreement with the Monte Carlo results. Moreover, our analytic calculation of the melting line of BSCCO fits the experiment reasonably well in a temperature range not far from Tc.
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Taxonomy
TopicsPhysics of Superconductivity and Magnetism · Superconductivity in MgB2 and Alloys · Superconducting Materials and Applications