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Mössbauer and magnetic studies of La0.8Sr0.2CoO3-δ CMR perovskite

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Abstract

In this paper we present 57Co emission Mössbauer and AC magnetic susceptibility studies of La0.8Sr0.2CoO3-δ perovskite. The observed coexistence of paramagnetic and magnetic subspectra in the 57Co emission Mössbauer spectra, as well as the difference of their isomer shifts support the existence of electronic phase separation in this perovskite, in good agreement with the double exchange based cluster model.

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Authors and Affiliations

  1. Department of Nuclear Chemistry, Eötvös Loránd University, Budapest, 1518, P.O. Box 32, Hungary

    Z. Németh, Z. Homonnay, F. Árva & A. Vértes

  2. Research Group for Nuclear Methods in Structural Chemistry, Hungarian Academy of Sciences at ELTE, Budapest, 1518, P.O. Box 32, Hungary

    Z. Homonnay, E. Kuzmann & A. Vértes

  3. Department of Applied Mathematics and Physics, University of Kaposvár, Guba Sándor u. 40, Kaposvár, 7400, Hungary

    Z. Klencsár

  4. Institute of Nuclear Research of the Hungarian Academy of Sciences, H-4001, Debrecen, P.O. Box 51, Hungary

    J. Hakl, K. Vad & S. Mészáros

  5. Institut für Chemische Technologie Anorganischer Stoffe, Johannes Kepler Universität, A-4040, Linz, Austria

    K. Kellner & G. Gritzner

Authors
  1. Z. Németh
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  2. Z. Homonnay
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  3. F. Árva
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  4. Z. Klencsár
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  5. E. Kuzmann
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  6. J. Hakl
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  7. K. Vad
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  8. S. Mészáros
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  9. K. Kellner
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  10. G. Gritzner
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  11. A. Vértes
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Supplement of the Hevesy Medal Award lacture.

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Németh, Z., Homonnay, Z., Árva, F. et al. Mössbauer and magnetic studies of La0.8Sr0.2CoO3-δ CMR perovskite. J Radioanal Nucl Chem 271, 11–17 (2007). https://doi.org/10.1007/s10967-007-0194-1

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  • DOI: https://doi.org/10.1007/s10967-007-0194-1

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