Abstract
Theoretical analysis of the first magnetocrystalline anisotropy constantK 1 of BaFe12O19 is performed. Two contributions toK 1 are considered — single ion anisotropy and dipolar anisotropy. ParameterD which determines the magnitude of the single ion contribution is calculated on the basis of the superposition model. It is argued that the disagreement between calculated and observed values ofK 1 is most likely connected with the contribution of Fe3+ ions on bipyramidal sites, for which the value ofD is uncertain.
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Novák, P. Superposition model analysis of the magnetocrystalline anisotropy of Ba-ferrite. Czech J Phys 44, 603–611 (1994). https://doi.org/10.1007/BF01689608
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DOI: https://doi.org/10.1007/BF01689608