A new HTSC family: the copper analogs of the single-layer Hg or Tl copper oxide superconductors

A new family of superconducting oxides has been obtained at high pressures in multiphasic samples within the Ba-Ca-Cu-O system. It corresponds to the substitution by copper of the Tl or Hg atoms in the so-called single-layer superconductors. At least four members have been detected, corresponding to...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 1994-03, Vol.222 (1), p.52-56
Main Authors: Alario-Franco, M.A., Chaillout, C., Capponi, J.J., Tholence, J.-L., Souletie, B.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cuprates superconductors (high tc and insulating parent compounds)
Effects of crystal defects, doping and substitution
Exact sciences and technology
High-Tc compounds
Other cuprates
Physics
Superconductivity
Transition temperature variations
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Summary:A new family of superconducting oxides has been obtained at high pressures in multiphasic samples within the Ba-Ca-Cu-O system. It corresponds to the substitution by copper of the Tl or Hg atoms in the so-called single-layer superconductors. At least four members have been detected, corresponding to n=3−6, in CuBa 2Ca n-1 Cu n O 2 n+2+ x . T c values of up to 120 K have been measured.
ISSN:0921-4534
1873-2143
DOI:10.1016/0921-4534(94)90114-7