Campbell Penetration Depth of a Superconductor in the Critical State

R. Prozorov, R. W. Giannetta, N. Kameda +3

The magnetic penetration depth $\lambda (T,H,j)$ was measured in the presence of a slowly relaxing supercurrent, $j$. In single crystal $\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{r}}_2\mathrm{CaC}{\mathrm{u}}_2{\mathrm{O}}_8$ below approximately 25…