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The Oxygen Defect Chemistry of La2−xSrxCuO4−x/2+δ

Published online by Cambridge University Press:  26 February 2011

Elizabeth J. Opila  and
Harry L. Tuller
Elizabeth J. Opila
Affiliation:
Crystal Physics and Optical Electronics Laboratory, Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge,, MA 02139
Harry L. Tuller
Affiliation:
Crystal Physics and Optical Electronics Laboratory, Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge,, MA 02139
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Abstract

The equilibrium oxygen stoichiometry of La2−xSrxCuO4±y (x=O, 0.2, 0.4, and 1.0) has been determined by TGA at temperatures between 800 and 1050°C and oxygen partial pressures between 1 and 10−4 atmospheres. The changes in oxygen content with temperature, oxygen partial pressure, and strontium concentration are evaluated in terms of a defect model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 209: Symposium K – Defects in Materials , 1990 , 867
Copyright
Copyright © Materials Research Society 1991

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References

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