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Mössbauer spectroscopy, intracluster atomic mobility and thermodynamics of ultrafine oxide clusters

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Il Nuovo Cimento D

Summary

Dynamic properties of ultrafine clusters of γ-Fe2O3 (ferric oxide, FO) were studied by Mössbauer spectroscopy and by thermodynamic analysis. The data obtained for FO clusters allowed the conclusion that dynamic properties of clusters as well as the decrease of melting point and the appearance of a gap between freezing and melting points depend on intracluster atomic mobility. Intracluster atomic mobility in FO clusters was shown to increase by the action of surfactants which decrease intercluster interactions. The increase in intracluster atomic mobility was suggested to proceed via formation of a solid-liquid state.

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References

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Authors and Affiliations

  1. N.N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 117977, Moscow, Russia

    I. P. Suzdalev, V. N. Buravtsev, V. K. Imshennik, Y. V. Maksimov, V. V. Matveev & A. V. Volynskaya

  2. Institute of Physics, Medical University of Lubeck, Ratzeburger Allee 160, D-23538, Lubeck, Germany

    A. X. Trautwein & H. Winkler

Authors
  1. I. P. Suzdalev
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  2. V. N. Buravtsev
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  3. V. K. Imshennik
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  4. Y. V. Maksimov
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  5. V. V. Matveev
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  6. A. V. Volynskaya
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  7. A. X. Trautwein
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  8. H. Winkler
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Suzdalev, I.P., Buravtsev, V.N., Imshennik, V.K. et al. Mössbauer spectroscopy, intracluster atomic mobility and thermodynamics of ultrafine oxide clusters. Il Nuovo Cimento D 18, 287–292 (1996). https://doi.org/10.1007/BF02458906

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  • DOI: https://doi.org/10.1007/BF02458906

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