Abstract
Superconducting samples of type (nano-Ag)xCu0.5Tl0.5Ba2Ca2Cu3O10−δ, x=0.0, 0.5, 1.0, 1.5, 2.0 and 3.0 wt.%, were prepared under ambient pressure via a single step solid-state reaction technique at 850 °C. The prepared samples were characterized by means of X-ray powder diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray (EDX) and differential scanning calorimetry (DSC). The electrical properties of the prepared samples were investigated using the electrical resistivity and I–V measurements. The low addition of nano-Ag up to x=1.5 wt.% enhanced the phase formation and improved the superconducting transition temperature Tc, critical current density Jc, and melting temperature. For x>1.5 wt.%, a reverse trend was observed.
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