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Magnetic Measurements on YBa(2)Cu(3)O(x) Ceramic High Temperature Superconductors

Published online by Cambridge University Press:  28 February 2011

J. Cornelis ,
A. Van Den Bosch ,
J. Vansummeren ,
H. Ooms ,
R. Gilissen ,
J. Cooymans ,
N. Maene  and
F. Biermans
J. Cornelis
Affiliation:
S.C.K./C.E.N., B-2400 MOL (Belgium)
A. Van Den Bosch
Affiliation:
S.C.K./C.E.N., B-2400 MOL (Belgium)
J. Vansummeren
Affiliation:
S.C.K./C.E.N., B-2400 MOL (Belgium)
H. Ooms
Affiliation:
S.C.K./C.E.N., B-2400 MOL (Belgium)
R. Gilissen
Affiliation:
S.C.K./C.E.N., B-2400 MOL (Belgium)
J. Cooymans
Affiliation:
S.C.K./C.E.N., B-2400 MOL (Belgium)
N. Maene
Affiliation:
S.C.K./C.E.N., B-2400 MOL (Belgium)
F. Biermans
Affiliation:
S.C.K./C.E.N., B-2400 MOL (Belgium)
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Abstract

Static magnetic susceptibilities have been measured, following the Faraday method, on a disc of home-made YBa(2)Cu(3)O(x). The superconducting ceramic disc was oriented perpendicular to the applied magnetic induction field < 10 mT. On cooling the sample in a constant field from above to below the critical temperature a Meissner-Ochsenfeld effect is observed. The interpretation of the data yields partial flux expulsion. That the flux is not completely expelled from the sample is understood on the basis of the flatness of the disc. Part of the flux which had not been expelled by the Meissner-Ochsenfeld effect remains trapped in the cooled superconducting material.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 829
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

1. Van den Bosch, A., Vansummeren, J., Ooms, H., Gilissen, R., Cooymans, J., Cornells, J., Maene, N. and Biermans, F., Proceedings of the European Workshop on “High T Superconductors and Potential Applications” held at Genova, Italy, 1–3 July 1987, P56.Google Scholar
2. Van den Bosch, A. and Vansummeren, J., Thermochimlca Acta 103 (1986) 83.Google Scholar