Novel melt processing for Gd-Ba-Cu-O system

A novel growth process in which the samples are grown between two temperatu res with increasing and decreasing temperature cycles was found to be succe ssful in improving the Aux pinning in a higher field region without deterio rating both T-c and the grain growth rate in the Nd-Ba-Cu-O system. In the present study, we employed the same novel melt-growth process for the growt h of a Gd-Ba-Cu-O sample acid found it effective in enhancing the J(c) in t he higher-field region.