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Phase identification and superconductivity transitions in Sr-doped Pr1.85Ce0.15CuO4+δ

Published online by Cambridge University Press:  26 July 2012

A. Varela ,
M. Vallet-Regí  and
J. M. González-Calbet
A. Varela
Affiliation:
Departamento de Química Inorgánica, Facultad de Químicas, Universidad Complutense, 28040 Madrid, Spain
M. Vallet-Regí
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain and Instituto de Magnetismo Aplicado, RENFE-UCM, Apdo. 155, Las Rozas, 28230 Madrid, Spain
J. M. González-Calbet
Affiliation:
Departamento de Química Inorgánica, Facultad de Químicas, Universidad Complutense, 28040 Madrid, Spain and Instituto de Magnetismo Aplicado, RENFE-UCM, Apdo. 155, Las Rozas, 28230 Madrid, Spain
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Abstract

Sr-doped Pr1.85Ce0.15CuO4+δ samples have been prepared with accurate control of the oxygen content. The stability of both T′ and T* phases is strongly dependent on Sr and oxygen content. An electron diffraction study indicates that, in some cases, anionic vacancies are ordered leading to a pseudo-tetragonal superlattice with unit cell parameters . Structural transitions and superconducting phases created by hole doping in such a system are also reported.

Type
Articles
Information
Journal of Materials Research , Volume 12 , Issue 10 , October 1997 , pp. 2526 - 2532
Copyright
Copyright © Materials Research Society 1997

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References

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