Publicado

2011-07-01

CONFINEMENT EFFECTS ON MIXED STATE IN SUPERCONDUCTING PRISMS

Palabras clave:

Mesoscopics, Ginzburg-Landau, molecular dynamics, de Gennes parameter (es)

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Autores/as

  • JOSE JOSE BARBA ORTEGA Departamento de Física, Universidad Nacional de Colombia, Bogotá - Colombia.
In this article, we theoretically investigated the vortex configuration of mesoscopic samples of different geometries, imbedded in an external magnetic field. We use the Ginzburg-Landau theory to obtain the spatial distribution of the superconducting electron density in long prisms with a square and triangular cross-section. Taking into account de Gennes boundary conditions via the extrapolation length, b, we study the properties of a mesoscopic superconducting square surrounded by different materials (metallic and another superconductor at higher critical temperature) in the presence of an external magnetic field applied perpendicularly to the square surface. The b-limit for the occurrence of a single vortex in the sample of area d² is determined. Also, we obtain the vortex configurations for a mesoscopic triangle with the magnetic field applied perpendicularly to a sample plane. In most of the configurations, the vortices present twofold or threefold symmetry

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[1]
“CONFINEMENT EFFECTS ON MIXED STATE IN SUPERCONDUCTING PRISMS”, DYNA, vol. 78, no. 168, pp. 158–163, Jul. 2011, Accessed: Sep. 02, 2026. [Online]. Available: https://revistas.unal.edu.co/index.php/dyna/article/view/26026