Growth induced structure defects in YBa2
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V.L. Svetchnikov; H.W. Zandbergen; V.F. Solovjov; V.M. Pan; H.C. Freyhardt
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Article
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1994
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Elsevier Science
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English
โ 195 KB
We aimed to find the correlation between the structure of YBCO single crystals with their high Jc values (-105 A/cm2 at 77 K, zero magnetic field). The most remarkable feature which belongs to high-Jc crystals was found to be the presence of spirals on their surface. Detailed examination of the ion-