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

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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
Issue number16
StatePublished - 1988

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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