Characterization of superconducting Bi2Sr2Can-1CunO4+2n phases with 57Fe Mössbauer spectroscopy

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© 1990 American Physical Society (APS). This is the accepted version of the following article: Tittonen, I. & Hietaniemi, J. & Huttunen, J. & Lindén, J. & Katila, T. & Karlemo, T. & Karppinen, Maarit & Niinistö, L. & Ullakko, K. 1990. Characterization of superconducting Bi2Sr2Can-1CunO4+2n phases with 57Fe Mössbauer spectroscopy. Physical Review B. Volume 42, Issue 7. 4212-4218. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.42.4212, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.42.4212.

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Journal Title

Journal ISSN

Volume Title

School of Chemical Technology | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

1990

Major/Subject

Mcode

Degree programme

Language

en

Pages

4212-4218

Series

Physical Review B, Volume 42, Issue 7

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.

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Keywords

Mössbauer spectroscopy, superconductivity, influence of cationic doping

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Citation

Tittonen, I. & Hietaniemi, J. & Huttunen, J. & Lindén, J. & Katila, T. & Karlemo, T. & Karppinen, Maarit & Niinistö, L. & Ullakko, K. 1990. Characterization of superconducting Bi2Sr2Can-1CunO4+2n phases with 57Fe Mössbauer spectroscopy. Physical Review B. Volume 42, Issue 7. 4212-4218. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.42.4212.