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Vol. 27 No. 10 (2015): Vol 27 Issue 10

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Synthesis and Characterization of Thallium Containing Bismuth Based Superconducting Materials

https://doi.org/10.14233/ajchem.2015.19000
Rashid Mahmood
Department of Chemistry, University of Azad Jammu and Kashmir, Chela Campus, Muzaffarabad-13100, Pakistan
Muhammad Javed Iqbal
Preston Institute of Nanoscience and Technology, Preston University, H-8, Islamabad, Pakistan

Corresponding Author(s) : Rashid Mahmood

rashid_meh786@yahoo.com

Asian Journal of Chemistry, Vol. 27 No. 10 (2015): Vol 27 Issue 10

Abstract

Bismuth based superconducting materials doped with thallium having a general formula Bi2-xTlxPb0.4Sr2Ca2Cu3Oy (x = 0.00, 0.05, 0.15, 0.25 and 0.35) were synthesized by the simple solid state reaction method. The effect of doping of thallium at the Bi-site, on the microstructure, electric and magnetic properties has been investigated through resistivity-temperature data, ac magnetic susceptibility and X-ray diffraction (XRD) analysis. It has been observed that the sample with thallium content, x = 0.25 has minimum room temperature resistivity value of 0.012 (ohm-cm) amongst all the samples studied here. The samples with x = 0.25 and 0.35 both have shown the highest Tc(0) ~109 K which is 4 K higher than that of the undoped sample. All of the samples were found to consist of both high-Tc (2223) and low-Tc (2212) phases in different proportions.

Keywords

Superconductivity Bi (2223) materials Thallium Electrical resistivity
Mahmood, R., & Javed Iqbal, M. (2015). Synthesis and Characterization of Thallium Containing Bismuth Based Superconducting Materials. Asian Journal of Chemistry, 27(10), 3826–3830. https://doi.org/10.14233/ajchem.2015.19000
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