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DoMayn-orientation dependence and low anisotropy factorof levitationforce in top-seeded melt-textured bulk YBCO

Published online by Cambridge University Press:  15 June 1999

A. W. Kaiser ,
H. J. Bornemann  and
V. Jung
A. W. Kaiser*
Affiliation:
Forschungszentrum Karlsruhe GmbH, INFP, P.O. Box 3640, 76021 Karlsruhe, Germany
H. J. Bornemann
Affiliation:
Forschungszentrum Karlsruhe GmbH, INFP, P.O. Box 3640, 76021 Karlsruhe, Germany
V. Jung
Affiliation:
Forschungszentrum Karlsruhe GmbH, INFP, P.O. Box 3640, 76021 Karlsruhe, Germany
*
[email protected]
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Abstract

Bulk Y1Ba2Cu3Oy was melt-textured without the use of seedcrystals as well as by applyingtop-seeding with different seeds resulting in different orientationsof the c-axis.Samples were examined by elasticneutron scattering and levitation force.The levitation force of the samples stronglydepends on the orientation of the c-axis.The local superconducting parameters were found to bereduced with increasing distance from the seed.In order to study this influence,two cubes were prepared by top-seeding, butwith seeds of Nd123 that had a parallel and perpendicularorientation of the c-axis of the Nd123-seedwith respect to the contact area of the high-T c superconductor.By this, different distances of the levitating surface,which is the surface that faces directly the magnet, fromthe seed were obtained. Results are presented and discussed.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 6 , Issue 3 , June 1999 , pp. 263 - 266
Copyright
© EDP Sciences, 1999

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References

FZK/INFP, German Patent DE 196 01 771 C1.
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