Surface morphology and physical properties of partially melt textured Mn doped Bi-2223

Abstract

The samples of Bi2Sr2Ca2Cu 3-xMnxO10+δ (x 0.0 to 0.30) were prepared by the standard solid-state reaction method. The phase identification characteristics of synthesized (HTSC) materials were explored through powder X-ray diffractometer reveals that all the samples crystallize in orthorhombic structure with lattice parameters a 5.4053 Å, b 5.4110 Å and c 37.0642 up to Mn concentration of x 0.30. The critical temperature (Tc) measured by standard four probe method has been found to depress from 108 K to 70 K as Mn content (x) increases from 0.00 to 0.30. The effects of sintering temperature on the surface morphology of Bi2Sr2Ca2Cu 3-xMnxO10+δ have also been investigated. The surface morphology investigated through scanning electron microscope and atomic force microscopy (SEM AFM) results that voids are decreasing but grains size increases as the Mn concentration increases besides, nanosphere like structures on the surface of the Mn doped Bi2Sr2Ca 2Cu3-xMnxO10+δ (Bi-2223) samples. © 2011 Author(s).