Figure 1
From: Intrinsic and extrinsic pinning in NdFeAs(O,F): vortex trapping and lock-in by the layered structure
Field dependence of critical current density Jc and pinning force density Fp of a NdFeAs(O,F) thin film.
The film was measured with field parallel to the c-axis (a,b) and the ab-plane (c,d) up to 16 T in the 35-10 K temperature range and in high-field up to 35 T at 4.2 K. The red lines in panel (b) are fitting curves obtained with eq. (1) as described in the text.
