Ginzburg-Landau parameter
= Ginzburg-Landau parameter
{c}
{title2=$\kappa=\lambda/\xi$}
In the isotropic single-component model, $\kappa<1/\sqrt2$ gives the type-I regime and $\kappa>1/\sqrt2$ the type-II regime; the interface-energy distinction belongs to the model, rather than a purely geometric test of core overlap.<Nobel Lecture: Type-II superconductors and the vortex lattice by Alexei Alexeyevich Abrikosov>[p.975, interface energy and the type-II regime]{ref}