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Growth of nd2‐xcexcuo4‐y Singlk Crystals by a Flux Method

Published online by Cambridge University Press:  28 February 2011

S. PiñOl ,
C. Miravitlles ,
J. Fontcuberta  and
D. Mck. Paul
S. PiñOl
Affiliation:
Institut de Ciencia de Materials de Barcelona (CSIC), Marti I Franqueś S/N, Barcelona (08028), Spain
C. Miravitlles
Affiliation:
Institut de Ciencia de Materials de Barcelona (CSIC), Marti I Franqueś S/N, Barcelona (08028), Spain
J. Fontcuberta
Affiliation:
Dept. Fiisica Fonamental., Univ. de Barcelona, Diagonal 647, Barcelona (08028), Spain
D. Mck. Paul
Affiliation:
Deptartment of Physics, University of Warwick, Coventry CV4 7AL, U.K.
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Abstract

We have investigated single‐crystals growth of Nd2‐xCexCu04‐y By using a flux method. The phase diagram Nd203 ‐CuO has been determined For a number of compositions. In addition, the corresponding diagram for some Nd2O3CeO2‐CuO composition is also reported. Plate single crystals having dimensions up to 5 x 5 x 0.2 m have been prepared by the melt mixtures from 1250℃ to 800℃ at a rate of 5℃/h.

The yield of CeO2 concentration in the starting compositions and the corresponding x values in the crystals has been investigated in order to improve superconducting properties of the crystals. Superconducting single crystals have been found from flux compositions 70% CuO, (30‐z)% NdO1.5and z% of CeO2 with 2.50 < z < 4 5.

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

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References

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