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The Effects of Oxygen Stoichiometry and Oxygen Ordering on Superconductivity in Y1Ba2Cu3O9−x

Published online by Cambridge University Press:  28 February 2011

R. Beyers ,
E. M. Engler ,
P. M. Grant ,
S. S. P. Parkin ,
G. Lim ,
M. L. Ramirez ,
K. P. Roche ,
J. E. Vazquez ,
V. Y. Lee  and
R. D. Jacowitz
...Show all authors
R. Beyers
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
E. M. Engler
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
P. M. Grant
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
S. S. P. Parkin
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
G. Lim
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
M. L. Ramirez
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
K. P. Roche
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
J. E. Vazquez
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
V. Y. Lee
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
R. D. Jacowitz
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120–6099
B. T. Ahn
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
T. M. Gür
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
R. A. Huggins
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
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Abstract

This paper reports on the structures and properties of Y1Ba2Cu3O9−x samples prepared in precisely controlled oxygen environments using a solid-state ionic technique. By titrating out oxygen at low temperatures, orthorhombic Y1Ba2Cu3O9−x samples were prepared with oxygen contents below 6.50. Resistivity and magnetometry studies indicated that these reduced, orthorhombic samples were marginally superconducting, with their superconductivity probably arising from local regions of higher oxygen content.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 77
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

1. Grant, P.M., Beyers, R.B., Engler, E.M., Lim, G., Parkin, S.S.P., Ramirez, M.L., Lee, V.Y., Nazzal, A., Vazquez, J.E., and Savoy, R.J., Phys. Rev. B 35, 7242 (1987).Google Scholar
2. Johnston, D.C., Jacobson, A.J., Newsam, J.M., Lewandowski, J.T., Goshorn, D.P., Xie, D., and Yelon, W.B., ACS Symposium Series 351: Chemistry of High Temperature Superconductors, 136 (1987).Google Scholar
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4. For example, see Beyers, R., Lim, G., Engler, E.M., Lee, V.Y., Ramirez, M.L., Savoy, R.J., Jacowitz, R.D., Shaw, T.M., La Placa, S., Boehme, R., Tsuei, C.C., Park, Sung I., Shafer, M.W., and Gallagher, W.J., Appl. Phys. Lett. 51, 614 (1987).Google Scholar
5. Harris, D.C. and Hewston, T.A., J. Solid St. Chem. 69, 182 (1987).Google Scholar
6. Ahn, B.T., Gür, T.M., Huggins, R.A., Beyers, R., and Engler, E.M., these proceedings.Google Scholar