Structural, magnetic and electrical properties of magnetically doped Bi -2212 textured rods grown by laser floating zone (LFZ) technique

Resumen del trabajo presentado a la: "3rd International Conference on Superconductivity and Magnetism" celebrada en Estambul (Turquia) del 29 de abril al 4 de mayo de 2012.
In this work, we have applied laser floating zone technique, a well -known way of fabricating crystals having highly-aligned dense morphology with improved transport properties, to obtain Bi2Sr2Ca1Cu2-xNixO (x=0, 0.01, 0.03, 0.05 and 0.1) fibers of size 1.8 mm diameter x 12 cm length. Microstructural, magnetic and electrical properties of fibers, grown with optimum growth conditions, were analyzed through scanning electron microscope (SEM), energy dispersive x-ray analysis (EDX), XRD patterns, R-T, I-V, M-T and M-H loops. In SEM/EDX and XRD measurements, it couldn’t be possible to find phases belong to Ni especially for low doping rates. On the other hand, Ni doping caused some negative effects regarding the magnetic properties of fibers.