Effect of Transition Metal Dopants on High (T sub c) Superconductivity

摘要

The magnetic, transport properties of Chromium doped high T(c) superconductor YBa2Cu3(1-x)Cr(x)O(7-delta) have been studied. The samples have been studied for x = 0.000, 0.020, 0.033. The samples have been found to retain the orthorhombic phase in all three materials and the characteristics temperature T(c) decreases strongly with Chromium concentration. The magnetic properties also show weakening as Chromium is added. The magnetization m(H), the lower critical field H(c1) and the critical current obtained from the m(H) loops show strong decrease as Chromium is added. The transport properties in the presence of magnetic field 0