Transport phenomena in superconductors: kinematic vortex

  • José José Barba-Ortega Ph.D. Física, Universidad Nacional de Colombia, Bogotá D.C., Foundation of Researchers in Science and Technology of Materials
  • Ely Dannier Valbuena-Niño Ph.D.(c) Ingeniería Mecánica, Universidad Politécnica de Madrid, Madrid, España, Universidad Industrial de Santander, Bucaramanga, Foundation of Researchers in Science and Technology of Materials
  • Miryam Rincón-Joya Universidad Nacional de Colombia, Bogotá D.C
Keywords: Ginzburg-Landau, Superconductors, Vortex

Abstract

The phenomenological Ginzburg-Landau theory (FGLT) is a strong tool in understanding the physics of the superconductors at low critical temperature in the presence of applied fields and currents. The FGLT is derived from the second order transition theory of Landau based on critical phenomena, leading to a set of two coupled nonlinear Ginzburg-Landau equations (GLE). In this paper, we solve the GLE to a superconducting slab of Al in presence of applied current j at zero magnetic fields. We have analysed the appearance and subsequent annihilation of vortexanti- vortex pairs in the middle of the sample at an external applied current j1. A small resistivity is found in Meissner range in the current-voltage curve at j ≤ j1.

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Published
2017-03-27
How to Cite
Barba-Ortega, J., Valbuena-Niño, E., & Rincón-Joya, M. (2017). Transport phenomena in superconductors: kinematic vortex. ITECKNE, 14(1), 11 - 16. https://doi.org/https://doi.org/10.15332/iteckne.v14i1.1625
Section
Research and Innovation Articles