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Mössbauer investigation of In and Sc substituted barium hexaferrite

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Abstract

A detail Mössbauer analysis has been performed on polycrystalline samples of hexagonal ferrites with composition BaFe12-x In x O19 (0≦x≦4) and BaFe12-x ScxO19 (0≦x≦3). The dependence on composition of the distribution of metallic cations among the five sublattices of the structure has been determined: these data confirm the strong preference of Sc and In ions for the sites belonging to the R block.

As a consequence iron ions located in the main spin up sublattice (12k) with different number of neighbouring Fe3+ ions display different temperature dependences of the magnetization. The occurrence of non-collinear spin configurations, even for very low degrees of substitution of iron, has also been evidenced.

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Authors and Affiliations

  1. Istituto di Fisica dell'Università, Parma, Italy

    G. Albanese & A. Deriu

  2. Instituto di Chimica Applicata dell'Università, Trieste, Italy

    E. Lucchini & G. Slokar

Authors
  1. G. Albanese
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  2. A. Deriu
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  3. E. Lucchini
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  4. G. Slokar
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Albanese, G., Deriu, A., Lucchini, E. et al. Mössbauer investigation of In and Sc substituted barium hexaferrite. Appl. Phys. A 26, 45–50 (1981). https://doi.org/10.1007/BF01197677

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  • DOI: https://doi.org/10.1007/BF01197677

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