Characterization of superconducting Bi2Sr2Can-1CunO4+2n phases with Fe57 Mössbauer spectroscopy

I. Tittonen*, J. Hietaniemi, Juhani Huttunen, J. LINDÉN, T. Katila, T. Karlemo, M. Karppinen, L. Niinistö, K. Ullakko

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

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    Abstract

    In order to study the dependence of superconductivity on sample preparation and the influence of cationic doping, Bi2Sr2Can-1CunO4+2n samples were prepared using various sintering temperatures and nominal starting compositions. After each sintering the samples were characterized with x-ray-diffraction and magnetic-ac-susceptibility measurements. In all cases the corresponding doped57 samples were also made for Mössbauer measurements. The Mössbauer measurements usually show three quadrupole components arising from the different phases in the samples. The site assignment of Fe57 is discussed.

    Original languageEnglish
    Pages (from-to)4212-4218
    Number of pages7
    JournalPhysical Review B
    Volume42
    Issue number7
    DOIs
    Publication statusPublished - 1990
    MoE publication typeA1 Journal article-refereed

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