The conventional Ginzburg-Landau (GL) theory is extended to a nonlocal one. In this nonlocal GL theory the superconducting current becomes nonlocal. The magnetic field distribution calculated in the single vortex state indicates that the interaction between vortices has an attractive part in low-κ type II superconductors with κ < κc ∼ 1. The attractive interaction causes the first-order transition at Hc1.
- Attractive interaction
- Ginzburg-Landau theory
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering