X-Ray characterization of La-Sr-Cu-O system

The high-temperature (38K) superconducting La--Sr--Cu--O sample was investigated by X-ray diffractometry with diffracted beam monochromator. Four phases were identified. It is possible that the interaction between two of them can influence the superconducting properties of the sample. The EPMA analy...

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Bibliographic Details
Published in:Zeitschrift f r Physik B Condensed Matter 1987-09, Vol.67 (3), p.313-317
Main Authors: GODWOD, K, GORECKA, J, JASIOLEK, G, MAJEWSKI, J, PRZYSLUPSKI, P
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Occurrence, potential candidates
Physics
Superconductivity
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Summary:The high-temperature (38K) superconducting La--Sr--Cu--O sample was investigated by X-ray diffractometry with diffracted beam monochromator. Four phases were identified. It is possible that the interaction between two of them can influence the superconducting properties of the sample. The EPMA analysis revealed the precipitates enriched by Sr up to 97%. The compositions of the matrix and the area with excess of Cu were estimated. The correlations between X-ray diffraction and EPMA results are discussed. 12 ref.--AA
ISSN:0722-3277
1431-584X
1434-6036
DOI:10.1007/BF01307255