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57Fe Mössbauer study of YBa4Cu2.95Fe0.05O8.5+y

✍ Scribed by V. Sedykh; J. Jiang; G. K. Strukova; U. Gonser; F. E. Fujita

Publisher
Springer
Year
1991
Tongue
English
Weight
330 KB
Volume
53
Category
Article
ISSN
1432-0630

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✦ Synopsis

57Fe Mtssbauer measurements were performed on the Fe-doped YBa4Cu3Os.5+y compound as a function of annealing temperature in vacuum. Mtssbauer spectra were analyzed using three different quadrupole split doublets. The resistance measurements showed that the compound is not superconducting. The possible identification of the Cu sites with their nearest neighbor oxygen sites in this compound is suggested. Comparison of the results with data of the presence of the superconductor YBa2Cu30 7 allows us to suppose that the presence of the Cu-chain sites alone does not result in superconductivity.

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