Suppression of the superconducting energy gap in intrinsic Josephson junctions of $\mathbf{B}{\mathbf{i}}_2\mathbf{S}{\mathbf{r}}_2\mathbf{CaC}{\mathbf{u}}_2{\mathbf{O}}_{8+\delta }$ single crystals

L. X. You, P. H. Wu, J. Chen +4

We have observed back-bending structures at high bias current in the current-voltage curves of intrinsic Josephson junctions. These structures may be caused by nonequilibrium quasi…