An efficient technique for growing (Bi,Pb)-2223 single crystals

T. Nomura, T. Motohashi, S. Lee, M. Karppinen*, H. Yamauchi

*Corresponding author for this work

Research output: Contribution to journalConference articleScientificpeer-review

4 Citations (Scopus)

Abstract

An efficient KCl-flux technique is presented for growing large amounts of (Bi,Pb)2Sr2Ca2Cu3O 10+δ or (Bi,Pb)-2223 single crystals with high reproducibility. In this technique single-phase (Bi0.85Pb0.15) 2Sr2Ca2Cu3O10+δ coarse-grain powder is added to act as seeds for growing single crystals in the Bi-Pb-Sr-Ca-Cu-O solute that otherwise contains as little as possible the (Bi,Pb)-2223 and (Bi,Pb)-2212 phases. The (Bi,Pb)-2223 seed powder, the Bi-Pb-Sr-Ca-Cu-O solute powder and KCl were mixed with a weight ratio of (0.01-0.1):1:4, and heated in an alumina crucible in air at 845 °C for 100 h to yield high-quality single crystals with an average size of 80 × 80 × 8 μm3. Using ∼200 single crystals having the c-axis aligned, anisotropic magnetization characteristics were successfully evaluated. Oxygen-annealing effects (both in 1 and 10 atm O2) on the H irr characteristics were investigated as well but found rather negligible.

Original languageEnglish
Pages (from-to)505-509
Number of pages5
JournalPHYSICA C: SUPERCONDUCTIVITY AND ITS APPLICATIONS
Volume426-431
Issue numberI
DOIs
Publication statusPublished - 1 Oct 2005
MoE publication typeA4 Article in a conference publication
EventInternational Symposium on Superconductivity -
Duration: 23 Nov 200425 Nov 2004
Conference number: 17

Keywords

  • (Bi,Pb)-2223 superconductor
  • H characteristics
  • Oxygen-annealing
  • Single-crystal growth

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