Bulletin of Materials Science

, Volume 37, Issue 1, pp 19–25 | Cite as

Influence of preparation conditions on superconducting properties of Bi-2223 thin films

  • N T MUA
  • A SUNDARESANEmail author
  • N K MAN
  • D D DUNG


We report electrical transport properties of Bi2Sr2Ca2Cu3O10+x (Bi-2223) superconducting thin films fabricated by pulsed-laser deposition on SrTiO3 substrate. The aim of the study was to investigate the influence of preparation conditions such as deposition temperature (T S), annealing time (t A) and deposition rate (r). A critical temperature (T c) as high as 110 K and critical current density (J c) of 6·2 × 106 A/cm2 at 20 K were obtained for T S = 760°C, t A = 4 h and r = 1·5 Å/s. We also investigated the effect of Li doping on Bi-2223 thin films. Li intercalation results in high resistive onset transition temperature and the resistivity shows broadening in magnetic field that increases with field. The large broadening of resistivity curve in magnetic field suggests that this phenomenon is directly related to the intrinsic superconducting properties of the copper oxide superconductors. The sudden drop in J c at relatively low magnetic field (H < 0·5 tesla) is due to the effect of Josephson weak-links at the grain boundaries.


Bi-2223 thin film pulsed laser deposition critical current density 



We thank the International Centre for Materials Science, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, for providing a visiting fellowship. This work was partially supported by the Nafosted Program under the Project No.103.02-2010.22. Authors thank Prof CNR Rao for helpful discussion and providing facilities required for this study.


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Copyright information

© Indian Academy of Sciences 2014

Authors and Affiliations

  1. 1.Police Department of Fire Prevention Fire Fighting and RescueHanoiVietnam
  2. 2.International Training Institute for Materials Science (ITIMS)Hanoi University of Science and TechnologyHanoiVietnam
  3. 3.Chemistry and Physics of Materials Unit and International Centre for Materials ScienceJawaharlal Nehru Centre for Advanced Scientific ResearchBangaloreIndia

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