Respuesta magnética de un superconductor en presencia de fuentes de calor y campos magnéticos
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Barba Ortega, José José
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Resumen
In 1908 H. K. Onnes, Dutch physicist, achieved the liquefaction of Helium at a temperature of approximately 4.2K in his laboratories in Leiden in the Netherlands; three years later he discovered the phenomenon that is later recognized as the manifestation of the quantum world at the macroscopic level: Superconductivity. Since then, the theories and experimental results that try to explain the mechanism by which superconductivity appears have been diverse. In order to deepen this branch of solid state physics and to provide some results, in this project the time-dependent Ginzburg-Landau theory TDGL will be applied to calculate the magnetization of the superconducting state of mesoscopic samples between Meissner state and Abrikosov state . The study system chosen is a thin square film, immersed in an external magnetic field. We will calculate the magnetization of the sample with different linear temperature variations, for a specific Ginzburg Landau parameter. This analysis will be carried out by numerically solving the time-dependent Ginzburg-Landau equations using the link variable method.