Important defeats on pinning of 2D pancake vortices in highly anisotropic Bi-2212 superconducting matrix with homovalent Bi/La substitution
Keywords: Bi1.6âxLaxPb0.5Sr2.0Ca1.1Cu2.1Oy; Magnetotransport measurements; Flux pinning ability; TAFF model; 2D pancake vortices; Pair-breaking mechanism;