Critical current density in high-field superconductors described using wave-particle duality

Abstract We report extensive measurements of the critical current density J C as a function of magnetic field B , field angle θ , temperature T , and applied strain ε app for a (RE)BCO coated conductor with artificial pinning centres (APCs), together with the effective upper critical field B c 2 ∗ ρ ( θ , T , ε app ) measured resistively down to ∼60 K. We show that the J C data are not properly described using the standard scaling analysis for the volumetric pinning force using F P ∝ F P , max b p ( 1 − b ) q because it leads to non-physical values ( ∼ 1000 T) of the B c 2 ∗ ρ at low temperatures. Here the