Fig. 1
From: Depth-resolved characterization of Meissner screening breakdown in surface treated niobium

SLR rate for two Nb samples at various applied fields, \(B_{a}\), as a function of implantation energy. The dashed lines are simple linear fits to the measured relaxation rate to help guide the eye. The diminishing slope as \(B_{a}\) increases indicates the evolution from the Meissner state to the mixed state.