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Title
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Chemical composition and microstructure of magnetically melt-textured Bi2Sr2Ca0.8Dy0.2Cu2O8-y
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Author
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Abstract
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| Dysprosium-doped Bi-based 2212 materials have been synthesized in the presence of a magnetic field, applied perpendicularly to the lateral face of a cylinder, by a melt-textured growth process. Thick (well oriented) layers of different chemical composition have been observed. A dysprosium-doped 2212 phase (the expected D phase) and a dysprosium-free bismuth-rich and strontium-deficient 2212 phase have been found. It is argued that the latter is a so-called M phase. Other impurity phases have been observed connected with both 2212-type layers. A novel aspect of this work is the calcium solubility at the strontium site in the 2201 structure, and inversely the strontium solubility at the calcium site in the 8250 structure. |
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Language
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English
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Source (journal)
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Journal of applied crystallography / International Union of Crystallography. - Copenhagen
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Publication
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Copenhagen
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1996
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ISSN
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0021-8898
1600-5767
[online]
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DOI
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10.1107/S0021889895011757
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Volume/pages
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29
:Part 2
, p. 147-151
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ISI
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A1996UL12700008
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Full text (Publisher's DOI)
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