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Formation of coherent twins in YBa2Cu3O7–δ superconductors

Published online by Cambridge University Press:  31 January 2011

C. J. Jou
Affiliation:
Department of Materials Science and Mineral Engineering, University of California, and Center for Advanced Materials, Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, California 94720
J. Washburn
Affiliation:
Department of Materials Science and Mineral Engineering, University of California, and Center for Advanced Materials, Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, California 94720
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Abstract

A nucleation-and-growth mechanism for the twin formation in YBa2Cu3O7–δ superconductors based on the oxygen uptake rate curve and published transmission electron microscopic observations is proposed together with an oxygen-depleted twin boundary model. The difficulty of reaching stoichiometric YBa2Cu3O7 is explained.

Type
Articles
Copyright
Copyright © Materials Research Society 1989

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References

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