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

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Abstract

57Fe Mössbauer measurements were performed on the Fe-doped YBa4Cu3O8.5+y compound as a function of annealing temperature in vacuum. Mössbauer 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 YBa2Cu3O7 allows us to suppose that the presence of the Cu-chain sites alone does not result in superconductivity.

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Authors and Affiliations

  1. Institute of Solid State Physics, Academy of Sciences, Chernogolovka, SU-142432, Moscow district, USSR

    V. Sedykh & G. K. Strukova

  2. Universität des Saarlandes, Werkstoffwissenschaften, W-6600, Saarbrücken, Fed. Rep. Germany

    J. Jiang & U. Gonser

  3. Research & Development Division, Sumitomo Metal Industries, Ltd., No. 3 1-Chome, Nishinagasu Hondori, Amagasaki, Japan

    F. E. Fujita

Authors
  1. V. Sedykh
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  2. J. Jiang
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  3. G. K. Strukova
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  4. U. Gonser
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  5. F. E. Fujita
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Sedykh, V., Jiang, J., Strukova, G.K. et al. 57Fe Mössbauer study of YBa4Cu2.95Fe0.05O8.5+y . Appl. Phys. A 53, 426–429 (1991). https://doi.org/10.1007/BF00348157

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  • DOI: https://doi.org/10.1007/BF00348157

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