Pearl vortex

In superconductivity, a Pearl vortex is a vortex of supercurrent in a thin film of type-II superconductor, first described in 1964 by Judea Pearl. A Pearl vortex is similar to Abrikosov vortex except for its magnetic field profile which, due to the dominant air-metal interface, diverges sharply as 1/${\displaystyle r}$ at short distances from the center, and decays slowly, like 1/${\displaystyle r^{2}}$ at long distances. Abrikosov's vortices, in comparison, have very short range interaction and diverge as ${\displaystyle \log(1/r)}$ near the center.