Nonequilibrium Campbell length: probing the vortex pinning potential

R. Prozorov, R. W. Giannetta, T. Tamegai +2

The $AC$ magnetic penetration depth $\lambda (T,H,j)$ was measured in presence of a macroscopic $DC$ (Bean) supercurrent, $j$. In single crystal BSCCO below approximately 28 K, $\lambda (T,H,j)$…