TY  - JOUR
AU  - G.M., Ranjbar 
AU  - Abd-Shulor, R. 
PY  - 2013
TI  - Formation of Tl-1212 Phase in CR  Substituted (Tl1-xCrx) Sr2CaCu2O7 Superconductor
JF  - Physics International
VL  - 3
IS  - 2
DO  - 10.3844/pisp.2012.74.78
UR  - https://thescipub.com/abstract/pisp.2012.74.78
AB  - Superconducting samples of (Tl1-xCrx) Sr2CaCu2O7 for x = 0.0-0.7 have been prepared by a solid state reaction technique at normal pressure using high purity elements. The powder X-ray diffraction patterns have been studied for samples. All samples showed the Tl-1212 as the major phase and Tl-1201 as the minor phase. The superconducting transition temperature Tc has been determined from the electrical resistivity measurements. The data of Tc, for (Tl1-xCrx) Sr2CaCu2O7 show enhancement in its value from 104 K to112 K as x (Cr-content) increases from 0.7 to 0.1. Our results shows the highest onset temperature for x = 0.2-0.3 and the lowest temperature for x = 0.7.