Precision photonic band structure calculation of Abrikosov periodic lattice in type-II superconductors

TL;DR

This paper presents a numerical method to calculate the photonic band structure of Abrikosov vortex lattices in type-II superconductors, considering nonlinear effects of magnetic field and temperature for potential optical electronics applications.

Contribution

It introduces a numerical approach based on solving the Ginzburg-Landau equation to analyze the photonic band structure of vortex lattices in superconductors, adaptable to various lattice geometries.

Findings

Band structure varies with magnetic field and temperature.

Method applicable to arbitrary lattice structures.

Potential for integrating photonic crystals into superconducting materials.

Abstract

We have performed a numerical solution for band structure of an Abrikosov vortex lattice in type-II superconductors forming a periodic array in two dimensions for applications of incorporating the photonic crystals concept into superconducting materials with possibilities for optical electronics. The implemented numerical method is based on the extensive numerical solution of the Ginzburg-Landau equation for calculating the parameters of the two-fluid model and obtaining the band structure from the permittivity, which depends on the above parameters and the frequency. This is while the characteristics of such crystals highly vary with an externally applied static normal magnetic field, leading to nonlinear behavior of the band structure, which also has nonlinear dependence on the temperature. The similar analysis for every arbitrary lattice structure is also possible to be developed by this approach as presented in this work. We also present some examples and discuss the results.