Frequency Response of AC Susceptibility in Melt Textured YBCO Superconductors

Microstructural refinement and enhanced transport properties in binary doped NdFeAsO superconductor

“…The dependence of peak temperature on frequency follows the same trend of exponential decrease as observed in YBCO superconductors. 26,27 But, in the present case, the shift in peak temperature with respect to frequency is comparatively larger. Moreover, we can see that with the increase in frequency, the real part of ac susceptibility shows the double-stepping nature which is clearly observed at a frequency of 999 Hz (Fig.…”