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Cation Disordering in the Tl-2122 Superconductors

Published online by Cambridge University Press:  28 February 2011

B. Morosin ,
D. S. Ginley ,
E. L. Venturini ,
R. J. Baughman ,
J. E. Schirber  and
C. P. Tigges
B. Morosin
Affiliation:
Sandia National Laboratories, Organization 1150, Albuquerque, NM 87185‐5800
D. S. Ginley
Affiliation:
Sandia National Laboratories, Organization 1150, Albuquerque, NM 87185‐5800
E. L. Venturini
Affiliation:
Sandia National Laboratories, Organization 1150, Albuquerque, NM 87185‐5800
R. J. Baughman
Affiliation:
Sandia National Laboratories, Organization 1150, Albuquerque, NM 87185‐5800
J. E. Schirber
Affiliation:
Sandia National Laboratories, Organization 1150, Albuquerque, NM 87185‐5800
C. P. Tigges
Affiliation:
Sandia National Laboratories, Organization 1150, Albuquerque, NM 87185‐5800
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Abstract

We have examined several crystals belonging to the Tl‐2122 structure type (Tl2CaBa2Cu2O8 with c=29Å), and have shown that cation solid solution occurs. Such cation disorder appears to be responsible for the observed small differences in lattice parameters reported by various investigators and to contribute towards the substantial variation in the superconducting transition temperatures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 169: Symposium M – High Temperature Superconductors: Fundamental Properties and Novel Materials Processing , 1989 , 141
Copyright
Copyright © Materials Research Society 1990

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References

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