International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2572

Full Length Research Paper

Electrical properties and crystal structure of Y123, Y358 and Y257/Y211 composite bulk superconductors

Kruaehong T.
  • Kruaehong T.
  • Department of Physics, Faculty of Science and Technology, Suratthani Rajabhat University, Surat Thani province, 84100, Thailand.
  • Search for this author on:
  • Google Scholar


  •  Received: 18 July 2014
  •  Accepted: 25 August 2014
  •  Published: 30 August 2014

Abstract

The Y123, Y358 and Y257 bulk superconductors mixed with various ratio of non-superconducting Y211 (Y2BaCuO5) were synthesized by solid state reaction. The physical properties of pellets were investigated by d.c. four-probes measurement. The crystal structure was determined using powder X-ray diffraction and the characteristic peaks were determined using the Rietveld full-profile analysis method. Results showed that the Tconset and Tcoffset decreased with the increasing of Y211 doping. The samples consist of both superconducting phase and the non-superconducting phase. The lattice parameter of Y211 doped samples showed lower c direction than pure samples. The superconducting phase decreased with increasing Y211 content. The non-superconducting phases consists of Pccm (Ba2Cu3O6) and Im-3m (BaCuO2) respectively. According to the percentage of superconducting phase, the anisotropy was increased with Y211 contents.

 

Key words: Y-based superconductors, Y211, Rietveld method.

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

Back to Vol. 9 No. 16
Back to articles
SUBSCRIBE TO RSS
SUBMIT MANUSCRIPT
CONFERENCES