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Magnetic moments and the high field susceptibilities of MnFe2O4 |
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| Authors: | Z. Šimša V. Roskovec F. Zounová P. Novotný W. Keilig |
| Affiliation: | (1) Institute of Solid State Physics, Czechosl. Acad. Sci., Prague, Cukrovarnická 10, 162 53 Praha 6, Czechoslovakia;(2) Institute of Physics, Czechosl. Acad. Sci., Prague, Na Slovance 2, 180 40 Praha 8, Czechoslovakia;(3) Academy of Sciences of the G. D. R., Inst. of Mag. Materials in the Central Inst. of Solid State Phys. and Mat. Sci., Jena, Helmholtzweg 4, 69 Jena, GDR |
| Abstract: | An extended version of the noncollinear spin model bySawatzky et al. is developed to derive a dependence of the differential high field susceptibility on the degree of inversion of the ferrite MnFe2O4. Using the available data on the main molecular field coefficients it is shown that the present model imposes restrictions on values of. Determination of from the measurements of the field dependence of the saturated moments at low temperatures on samples with varying degrees of inversion reveals good quantitative agreement with the present model. |
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