A New Approach of Synthesis Fe-Substituted Bi-2223 Superconductors

Rohitash Kumar

doi:10.37591/rrjophy.v10i3.3267

Abstract

Generally, the Bismuth based high temperature superconductors are utilizing in three phases as Bi-2201, Bi-2212 and Bi-2223. These have different transition temperature according to superconducting phase. Here, we studied about Bi-2223 phase by using complex Bi2Sr2Can-1 (Cu1-xFex)3O10+δ where n = 3. In this complex, we has been doped iron in Coper (Cu) site (x = 0.07%). This sample was prepared by solid state reaction method. The planetary Ball mill was used to found the homogeneous powder and grains size particles. The orthorhombic phase and lattice parameter a = 5.19213 A, b = 5.50805 A, c = 34.7816 A were obtained by X-Ray diffraction (XRD) using Rietveld refinement method. The morphological data obtained using field emission scanning electron microscope (FESEM) and found average crystallite size and grain size of the particle at nano scale 34.92 nm. The bond stretching 417.35 cm-1 and 598.85 cm-1 between CuO and FeO are obtaining using Fourier Transform Infrared (FTIR) respectively. The DC electrical resistivity measured at low temperature by liquid nitrogen using Four Prove method and magnetic properties were measured by vibrating sample magnetometer (VSM) at 15kH(Oe) applied magnetic field at room temperature. This study is confirm the initially growth of Fe-substituted Bi-2223 ceramic superconductors.

Abstract

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