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Growth twins in Bi2Ca1Sr2Cu2O8 superconductor single crystals

Published online by Cambridge University Press:  31 January 2011

P. D. Han ,
A. Asthana ,
Z. Xu  and
D. A. Payne
P. D. Han
Affiliation:
Department of Materials Science and Engineering, Materials Research Laboratory, and Science, and Technology Center for Superconductivity, University of Illinois at Urbana-Champaign, Illinois 61801
A. Asthana
Affiliation:
Department of Materials Science and Engineering, Materials Research Laboratory, and Science, and Technology Center for Superconductivity, University of Illinois at Urbana-Champaign, Illinois 61801
Z. Xu
Affiliation:
Department of Materials Science and Engineering, Materials Research Laboratory, and Science, and Technology Center for Superconductivity, University of Illinois at Urbana-Champaign, Illinois 61801
D. A. Payne
Affiliation:
Department of Materials Science and Engineering, Materials Research Laboratory, and Science, and Technology Center for Superconductivity, University of Illinois at Urbana-Champaign, Illinois 61801
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Abstract

Large-scale twin structures in single crystal Bi2Ca1Sr2Cu2O8 (2122) are reported for the first time. Symmetrical 90° (i.e., a-b) twins with a [110] type twin boundary were observed. A characteristic layer-growth morphology and jagged twin walls suggest that twin formation occurred layer by layer during crystal growth; i.e., the twins were growth twins. Hot-stage optical microscopy, x-ray diffraction, and electron microscopy results are discussed with reference to twin morphology.

Type
Materials Communications
Information
Journal of Materials Research , Volume 5 , Issue 5 , May 1990 , pp. 909 - 912
Copyright
Copyright © Materials Research Society 1990

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References

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