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100-K superconducting phases in the Tl-Ca-Ba-Cu-O system

  • R. M. Hazen
  • , L. W. Finger
  • , R. J. Angel
  • , C. T. Prewitt
  • , N. L. Ross
  • , C. G. Hadidiacos
  • , P. J. Heaney
  • , D. R. Veblen
  • , Z. Z. Sheng
  • , A. El Ali
  • , A. M. Hermann

Research output: Contribution to journalArticlepeer-review

Abstract

Two superconducting phases, Tl2Ca2Ba2Cu3O10 (2223) and Tl2Ca1Ba2Cu2)8 (2122), both with onset Tc near 120 K and zero resistivity at 100 K, have been isolated from samples in the Tl-Ca-Ba-Cu-O system. The new 2223 superconductor has a 5.40×5.40×36.253 pseudotetragonal unit cell. The 2122 superconductor, which appears to be structurally related to Bi2CaSr2Cu2O8, has a 5.44×5.44×29.553 pseudotetragonal subcell. The 2223 phase is probably related to 2122 by the addition of extra calcium and copper layers.

Original languageEnglish (US)
Pages (from-to)1657-1660
Number of pages4
JournalPhysical review letters
Volume60
Issue number16
DOIs
StatePublished - 1988

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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