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The Role of H in Superconducting HxYBa2Cu3O7

Published online by Cambridge University Press:  28 February 2011

C. Y. Yang ,
S. M. Heald ,
J. J. Reilly  and
M. Suenaga
C. Y. Yang
Affiliation:
Department of Physics, North Carolina State University, Raleigh, NC 27695
S. M. Heald
Affiliation:
Department of Applied Science, Brookhaven National Laboratory, Upton, NY 11973
J. J. Reilly
Affiliation:
Department of Applied Science, Brookhaven National Laboratory, Upton, NY 11973
M. Suenaga
Affiliation:
Department of Applied Science, Brookhaven National Laboratory, Upton, NY 11973
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Abstract

We have examined the role of H on the superconductivity properties, the atomic structure, and the electronic state in the HxYBa2Cu3O7. The hydrogen solid solution phase (up to ×≃O.2) exhibits a superconducting transition at 94 K, which was usually slightly higher than the starting oxide (YBa2Cu3O7, while the hydride phases (H rich) are not superconducting. Infrared (IR), x-ray diffraction, and x-ray absorption spectroscopy (XAS) measurements indicate that H is located interstitially only near Cu sites.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 969
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

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