X-ray characterization of La−Sr−Cu−O system |
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| Authors: | K Godwod J Gorecka G Jasiolek J Majewski P Przyslupski |
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| Institution: | (1) Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32-46, PL-02-668 Warszawa, Poland |
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| Abstract: | The high-temperature (38 K) 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. |
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