In this study, the effect of Na substitution on the structural, electrical and magnetic properties
of Bi 2 Sr 2 Ca 1− x Na x Cu 2 O 8+ y superconductor with x= 0.0, 0.05, 0.075, 0.1, 0.15, and …

BiPb-2234 bulk samples with nominal composition of the compound Bi 1.7 Pb 0.3− x Nd x Sr
2 Ca 3 Cu 4 O 12+ y (BSCCO)(0.025≤ x≤ 0.10) have been prepared by the melt …

In this study, Na-substituted Bi 2 Sr 2 Ca 0.9 Na 0.1 Cu 2 O superconductor samples were
prepared by a polymer solution method. Three different sintering temperatures (850, 860 …

Measurements of the electrical resistance (RT), thermoelectric power (ST) and thermal
conductivity (κ-T) have been carried out on the superconductor Bi 1.7 Pb 0.3-x Gd x Sr 2 Ca …

The effects of post-annealing temperature were investigated on Bi2Sr2Ca1Cu2O8+∂ thin
films deposited on MgO (100) substrates by pulsed laser deposition (PLD). The structural …

In this study, we have carried out thermoelectric power (S–T) and thermal conductivity (κ–T)
measurements from room temperature down to 15K on Bi1. 7Pb0. 3− xNdxSr2Ca3Cu4O12+ …

An interesting research area of superconductivity receiving a great deal of attention is the
substitutional studies. Several properties of high-Tc superconductors have been identified …

Superconducting samples with nominal composition Bi 1.3 V 0.3 Pb 0.4 Sr 2 Ca 2 Cu 3 O δ
are prepared by the solid state reaction method. The samples are characterized by X-ray …

The effect of substitution, of some different ions other than the main matrix ions, on the
transition temperature Tc of high temperature superconductors have been classified into …

Since the discovery of 90 K superconductivity in the Ba-Y-Cu oxide system (Wu, et. al., 1987)
a number of studies have been published. A true superconductor not only shows zero …