Physical Properties of $$(\hbox {BaSnO}_{3})_\mathrm{x}/\hbox {Cu}_{0.5}\hbox {Tl}_{0.5}\hbox {Ba}_{2}\hbox {Ca}_{2}\hbox {Cu}_{3}\hbox {O}_{10{-}\delta }$$ ( BaSnO 3

Thermoelectric power of (Cu0.5Tl0.5)-1223 superconducting phase added with BaSnO3 nanoparticles

“…The prepared samples were characterized using X-ray Powder diffraction (XRD) and scanning electron microscope (SEM) in our previous work [8]. As a results from these characterizations, the BaSnO 3 nanoparticles set at the grain boundaries (no variation of lattice parameters was observed), and the addition of low content of nanoparticles enhanced the formation of (Cu 0.5 Tl 0.5 )-1223 phase [9].…”

“…The prepared superconducting samples added by x BaSnO 3 nanoparticles (prepared by chemical Coprecipitation method) with different concentrations (x = 0.00, 0.25, 0.50, 0.75 and 1.50 wt.%) using solidstate reaction technique at ambient pressure, reported in our previous work [8]. DC electrical resistivity was used to characterize the superconducting properties of the samples using standard four-probe DC technique, in the temperature range (77 to 300) K. TEP of the prepared superconductor samples was measured using the standard differential technique in the temperature range from 80 to 280 K. The sample, of dimensions 1.5 × 0.3 × 0.2 cm 3 , was clamped between two copper plates and each one supplied with a metal resistor heater.…”

“…The values of T c for all samples are listed in table 1. The enhancement in T c can be discussed according to the improvement in the volume fraction and inter grain connectivity for x = 0.25 wt.%[8]. The hole-carriers concentration per Cu ion (P) is listed in table 1, calculated through the following relation[10] …”

Mechanical properties of the (BaSnO3)x/Cu0.5Tl0.5Ba2Ca2Cu3O10−δsuperconductor phase

“…The preparation of the Cu 0.5 Tl 0.5 Ba 2 Ca 2 Cu 3 O 10−δ superconductor phase added with different concentration additions of BaSnO 3 nanoparticles (x=0.00, 0.25, 0.50, 0.75, 1.00 and 1.50 wt.%) were synthesized using a solid-state reaction technique and the nanoparticles were prepared by a chemical co-precipitation method, reported in our previous work [19].…”

“…The characterization and investigation of the prepared samples were carried out using x-ray powder diffraction (XRD), a scanning electron microscope (SEM), energy depressive x-ray (EDX), electrical resistivity and I-V measurements as reported in our previous work [19]. The XRD results showed that all the samples belong to the (Cu 0.5 Tl 0.5 )-1223 tetragonal phase with a small amount of Ba-Cu-O non-superconducting impurities.…”