Variational Analysis of the Speed of Propagating Fronts in Superconductors
Keywords:Front propagation in superconductor; Ginzburg-Landau equation; velocity selection; exact solution; variational analysis
A new approach has taken to determine the speed of the superconducting-normal interface (front) propagating from a stable superconducting phase to the unstable normal phase by means of a variational method. In this process a trial function g(x) is introduced which has a relation with the superconducting order parameter F. Starting from the time-dependent Ginzburg-Landau (TDGL) equations an expression is derived for the front speed in terms of GL parameter κ.
The Chittagong Univ. J. Sci. 43(1): 41-50, 2021
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