Magnetization hysteresis and flux pinning in twinned and untwinned YBa2Cu3O7-δ single crystals

Measurements of the magnetization hysteresis of the same crystal in the twinned and untwinned state reveal that pinning due to twinning planes may contribute a substantial, anisotropic fraction of the observed critical currents. A linear scaling between magnetization hysteresis and sample dimension...

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Bibliographic Details
Published in:Applied physics letters 1990-07, Vol.57 (1), p.84-86
Main Authors: WELP, U, KWORK, W. K, CRABTREE, G. W, VANDERVOORT, K. G, LIU, J. Z
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Physics
Properties of type I and type II superconductors
Superconductivity
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Summary:Measurements of the magnetization hysteresis of the same crystal in the twinned and untwinned state reveal that pinning due to twinning planes may contribute a substantial, anisotropic fraction of the observed critical currents. A linear scaling between magnetization hysteresis and sample dimension shows that the twinned and untwinned crystal does not exhibit any subgranular effects.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.104237