Abstract
The work of Neumann and Tewordt is generalized to obtain the first-order correction (in ) to the Ginzburg-Landau expression for the free energy of an inhomogeneous super-conductor. From this expression, the generalized Neumann-Tewordt equations for the first-order corrections to the solutions of the Ginzburg-Landau equations are derived. For two important geometries, the normal-superconducting wall and the mixed state of type-II super-conductors, we show that the free energy can be rewritten so that it involves only the solutions of the Ginzburg-Landau equations. We apply this formalism to the calculation of the wall energy, where we calculate as a function of and for , and to the mixed state of type-II superconductors, where we calculate as a function of , , and for singly and doubly quantized isolated vortices.
- Received 2 June 1971
DOI:https://doi.org/10.1103/PhysRevB.4.3016
©1971 American Physical Society