Engineered flux-pinning centers in Bi 2 Sr 2 CaCu 2 O x and TIBa 2 Ca 2 Cu 3 O x superconductors

K. C. Goretta, V. R. Todt, D. J. Miller, Michael T. Lanagan, Y. L. Chen, U. Balachandran, J. Guo, J. A. Lewis

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13 Scopus citations

Abstract

Three methods were used to introduce flux-pinning centers into Bi 2 Sr 2 CaCu 2 O x (Bi-2212) and TlBa 2 Ca 2 Cu 3 O x (Tl-1223) samples. It was found that carbon induced local decomposition, that nanosized Al 2 O 3 additions created stable reaction products, and that second phases could be isolated in Tl-1223 during synthesis. Each of these defects enhanced flux pinning and was of most benefit at temperatures ≤ 35K.

Original languageEnglish (US)
Pages (from-to)1961-1966
Number of pages6
JournalJournal of Electronic Materials
Volume24
Issue number12
DOIs
StatePublished - Dec 1 1995

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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