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Defect Chemistry of High Tc Superconductors

Published online by Cambridge University Press:  26 February 2011

Kazuo Fueki  and
Yasushi Idemoto
Kazuo Fueki
Affiliation:
Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278, Japan
Yasushi Idemoto
Affiliation:
Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278, Japan
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Abstract

The oxygen deficiency δ in YBa2Cu3O7−δ was determined as a function of oxygen partial pressure and temperature. It was found that all the δ−log Po2 data points fall on a single smooth curve (master curve) when the points for each temperature were shifted in parallel with each other in the direction of abscissa by a certain distance. A theoretical equation describing the δ−logP02 relation was derived on the basis of electroneutrality, mass action law and site conservation.The theoretical curve agreed well with the experimental hL.Lster curve.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 209: Symposium K – Defects in Materials , 1990 , 783
Copyright
Copyright © Materials Research Society 1991

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References

REFERENCES

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