Figure 4
From: Oxypnictide SmFeAs(O,F) superconductor: a candidate for high–field magnet applications
Field and orientation dependence of critical current density (Jc) of SmFeAs(O,F) thin film.
(a) Angular dependence of Jc measured at 3 different applied magnetic fields at 30 K and (b) the corresponding exponent n values. (c) Jc(Θ, H) measured at 40 K under several magnetic fields (μ0H = 2.5, 4 and 6 T) and (d) the corresponding exponent n values. (e) Angular dependence of Jc at 4.2 K under various applied magnetic fields up to 40 T. (f) Scaling behaviour of the angular dependent Jc measurements. Below 17 T (i.e., by substituting μ0H = 32.5 T and Θ = 59° in H cosΘ) as indicated by the arrow, both curves overlap each other.
