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Phase Relationships in ISO- and Aliovalent Analogues of La2CuO4: Implications for Superconductivity

Published online by Cambridge University Press:  26 February 2011

E. M. Mccarron III ,
M. K. Crawford ,
R. L. Harlow  and
W. E. Fameth
E. M. Mccarron III
Affiliation:
Du Pont Central Research, Experimental Station, Wilmington, Delaware 19880.
M. K. Crawford
Affiliation:
Du Pont Central Research, Experimental Station, Wilmington, Delaware 19880.
R. L. Harlow
Affiliation:
Du Pont Central Research, Experimental Station, Wilmington, Delaware 19880.
W. E. Fameth
Affiliation:
Du Pont Central Research, Experimental Station, Wilmington, Delaware 19880.
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Abstract

In addition to the well known I4/mmm and Bmab phases, recent low temperature structural studies of certain T-type (K2NiF4-related) La2CuO4 analogues have revealed two additional structural modifications, one with Pccn and the other with P42/ncm symmetry. Via appropriate iso- and aliovalent substitution chemistry, regions of T-type phase field have been mapped out and the influence of these phase transitions on superconductivity studied.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 275: Symposium S – Layered Superconductors: Fabrication, Properties and Applications , 1992 , 359
Copyright
Copyright © Materials Research Society 1992

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References

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