Vortex state in a superconducting two-orbital square with mixed boundary conditions

Estado de vórtices en un cuadrado superconductor de dos-orbitales con condiciones de contorno mixtas

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Cristian Andrés Aguirre-Tellez
Ely Dannier Valbuena-Niño
José José Barba-Ortega
Abstract

In this contribution we studied the vortex state in a two-orbital superconducting square in the presence of a constant external magnetic field H in a zero-field-cooling process. The sample is in contact with different types of materials simulated via deGennes extrapolation parameter (b). Our research was carried out by solving the bidimensional time-dependent Ginzburg-Landau. We study the magnetic induction, superconducting electron density and the phase of the order parameter for different values of b on the sample surface. To do this, we use two combinations of boundary conditions for the four surfaces of the square. We show novel and interesting vortex configuration highly dependent on the chosen values of b, temperature, and sample size.

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