Research Article Open Access

Formation of Tl-1212 Phase in CR Substituted (Tl1-xCrx) Sr2CaCu2O7 Superconductor

G. M. Ranjbar1 and R. Abd-Shulor1
  • 1 Universiti Kebangsaan Malaysia, Malaysia
Physics International
Volume 3 No. 2, 2012, 74-78

DOI: https://doi.org/10.3844/pisp.2012.74.78

Submitted On: 22 June 2012 Published On: 20 May 2013

How to Cite: Ranjbar, G. M. & Abd-Shulor, R. (2012). Formation of Tl-1212 Phase in CR Substituted (Tl1-xCrx) Sr2CaCu2O7 Superconductor. Physics International, 3(2), 74-78. https://doi.org/10.3844/pisp.2012.74.78

Abstract

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.

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Keywords

  • Phase Formation
  • Tl-1212 Superconductor
  • Cr-Substitution
  • High Tc
  • Superconducting Transition
  • Diffraction Patterns
  • Reaction Technique
  • Solid State
  • Powder X-Ray