Superconducting Studies of Nd3+- and Dy3+-substituted GdBaSrCu3O y System

Abstract

The compounds Gd1−x Nd x BaSrCu3O7−δ (where x=0, 0.1 and 0.2) and Gd1−x Dy x BaSrCu3O y (where x=0, 0.1 and 0.3) were synthesized using the solid state reaction technique. The tetragonal crystallization of the compounds was identified by powder X-ray diffraction. The microrange crystallite formation and the substitution elements present in the compounds were observed by SEM and EDX analyses. The suppression of superconducting transition temperature and the variation of magnetization parameters for the substitution of rare-earth magnetic elements Nd and Dy ions were observed by low-temperature electrical resistance and magnetization measurements.