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Transport and Meissner Effect Studies for YBa2(Cuy1−xZnx)3O7

Published online by Cambridge University Press:  28 February 2011

S. H. Bloom ,
M. V. Kuric ,
Y. S. Yao ,
R. P. Guertin ,
D. Nichols ,
C. Jee ,
A. Kebede ,
J. E. Crow ,
T. Mihalisin  and
G. N. Myer
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S. H. Bloom
Affiliation:
Physics Department, Tufts University, Medford, MA 02155.
M. V. Kuric
Affiliation:
Physics Department, Tufts University, Medford, MA 02155.
Y. S. Yao
Affiliation:
Physics Department, Tufts University, Medford, MA 02155.
R. P. Guertin
Affiliation:
Center for Materials Research, Temple University, Philadelphia, PA 19122.
D. Nichols
Affiliation:
Physics Department, Tufts University, Medford, MA 02155.
C. Jee
Affiliation:
Physics Department, Tufts University, Medford, MA 02155.
A. Kebede
Affiliation:
Physics Department, Tufts University, Medford, MA 02155.
J. E. Crow
Affiliation:
Physics Department, Tufts University, Medford, MA 02155.
T. Mihalisin
Affiliation:
Physics Department, Tufts University, Medford, MA 02155.
G. N. Myer
Affiliation:
Physics Department, Tufts University, Medford, MA 02155.
P. Schlottmann
Affiliation:
Center for Materials Research, Temple University, Philadelphia, PA 19122.
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Abstract

Single phase orthorhombic YBa2(Cuy1−xZnx)3O7 samples were formed for 0<x<0.16. The high T superconductivityXfor x=6 (T =90 K) is rapidly depressed with increasing x, and is quenched for x>0.08. Low field (<100 G) cooled magnetization studies show that the superconducting component decreases as x approaches the critical value for suppression of superconductivity, and this is supported by high resolution specific heat measurements in the vicinity of T. Temperature dependent electrical resistivity studies for x<0.08 show metallic behavior; for x>0.10 semiconducting behavior. The electrical resistance was studied at high quasihydrostatic pressures also, and for x=0.08 showed that T is depressed with increasing pressure: T → 0 K for P >10 GPa. This is in°contrast to YBa2(Cuy1−xZnx)3O7 where dT /dP>0. The data support evidence for the high sensitivity to chemical and ice perturbations of the physical properties of samples near the superconducting-normal transition region.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 805
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

1. Jee, See C., Nichols, D., Ciasullo, J., Crow, J.E., Mihalisin, T., Myer, G.N., Kurie, M.V., Bloom, S.H. and Guertin, R.P., this conference, and references therein.Google Scholar
2. Yao, Y.S., Guertin, R.P., Hinks, D.G., Jorgensen, J., Capone, D.W. II, submitted for publication.Google Scholar
3. Yao, Y.S. et al, unpublished work.Google Scholar