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The distribution of ions and their valencies in magnesium manganese ferrites |
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| Authors: | J. Brož |
| Affiliation: | (1) Institute of Technical Physics, Czechosl. Acad. Sci., Prague |
| Abstract: | A model of the distribution of cations and valencies in non-stoichiometric magnesium manganese ferrites was proposed and its validity verified by measuring the saturation magnetic moments. The results of measuring the moment in stoichiometric ferrites to a certain extent confirms the correctness of the proposed model for this type of magnesium manganese ferrites, too. In a discussion of the distribution coefficient for manganese ions the close connection between this coefficient and the average valency of the manganese was pointed out. The question of the dependence of the distribution coefficient of magnesium ions on the composition is solved by introducing the maximum values of this coefficient and assuming that a simple proportionality holds for all compositions between the actual value of this coefficient and its maximum value.
In conclusion the author thanks Dr. S. Krupi  ka and K. Záv ta for valuable discussions. |
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