Physics – Condensed Matter – Superconductivity
Scientific paper
1999-10-21
Physics
Condensed Matter
Superconductivity
4 pages, 3 figures, to appear at Physica C
Scientific paper
10.1016/S0921-4534(99)00549-3
A numerical method to calculate equilibrium vortex-line configurations in bulk anisotropic type-II superconductors, at zero temperature, placed in an external magnetic field is introduced and applied to two physical problems. The method is designed to search for the minimum of the Gibbs free-energy in the London approximation and assumes only that the vortex lines are straight and arranged in a periodic lattice. Based on these assumptions a simulated annealing algorithm is developed to find the vortex-line-lattice unit cell shape, and vortex-line positions within it. This algorithm is made fast and accurate by the use of a rapidly converging series to calculate the lattice sums entering the vortex-vortex interaction energy. The method's accuracy is illustrated by calculating the magnetic induction versus applied field curve for an isotropic superconductor. The method is applied to a superconductor with a square lattice of columnar defects to study selected regions of the zero-temperature-phase diagram where vortex-line-lattices commensurate with the columnar defect lattice exist.
Carneiro Gilson
Morgado Welles A. M.
No associations
LandOfFree
Numerical Method for Zero-Temperature Vortex-Line Phase Diagrams does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Numerical Method for Zero-Temperature Vortex-Line Phase Diagrams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical Method for Zero-Temperature Vortex-Line Phase Diagrams will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-250119