Characterization of ferro#uid-polymer composites on high T # superconductor Bi 2 Sr 2 Ca 2 Cu 3 O y

The e!ect of Mn}Zn}Gd ferro#uid polymer composite "lm on high-T # superconducting material Bi (2 2 2 3) has been studied. These "lms were prepared under the in#uence of with and without magnetic "eld and were characterized by XRD, SEM and VSM techniques. The study revealed that the techniques used does not e!ect the superconducting properties of the material for making devices based upon this. ( 1999 Elsevier Science B.V. All rights reserved.