Released power in a vortex-antivortex pairs annihilation process

Resumen

En este trabajo, estudiamos el proceso de disipación de calor de un par vórtice-antivortice de Shubnikov en un cuadrado superconductor mesoscópico con un defecto cuadrado concéntrico en presencia de un campo magnético externo oscilatorio. Las ecuaciones dependientes del tiempo de Ginzburg-Landau y la ecuación de difusión se resolvieron numéricamente. El resultado principal es que la disipación térmica está asociada con una relajación considerable de los electrones superconductores de modo que la potencia liberada en este tipo de proceso podría calcularse en función del tiempo. Además, analizamos el efecto que tienen los parámetros de Ginzburg-Landau κ y deformación τ dentro del defecto, sobre la magnetización, potencia disipada y densidad de superelectrónes.

Palabras clave: Ginzburg-Landau, mesoscópico, magnetización, vórtices

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Publicado
2020-11-10