Strong-Gravity Effect on Twinned Y1Ba2Cu3O7-x Single Crystal
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Published:2009-04
Issue:
Volume:289-292
Page:517-521
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ISSN:1662-9507
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Container-title:Defect and Diffusion Forum
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language:
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Short-container-title:DDF
Author:
Bagum Rabaya1,
Okayasu Satoru2,
Iguchi Yusuke3,
Ono Masao2,
Mashimo Tsutomu1
Affiliation:
1. Kumamoto University
2. Japan Atomic Energy Research Institute
3. Toyoto Motor Kyushu Inc.
Abstract
Ultracentrifuge experiments were performed on the twinned Y1Ba2Cu3O7-x (Y123) single crystal at much lower temperatures than the melting point. Two layers structure with slightly different compositions was observed in the sample ultracentrifuged at 250°C(380,000 G), which might be due to the sedimentation of atoms. In the strong gravity layer, it was found that the Y123 phase disappeared, and unknown XRD peaks appeared. Decomposition occurred in the sample ultracentrifuged at 400°C.
Publisher
Trans Tech Publications, Ltd.
Subject
Condensed Matter Physics,General Materials Science,Radiation