| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-935 - C8-936 | |
| DOI | https://doi.org/10.1051/jphyscol:19888426 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-935-C8-936
DOI: 10.1051/jphyscol:19888426
1 Ecole d'Ing. Electriciens, Univ. Aristote, Thessaloniki, Greece
2 Lab. de Cristallographie, C.N.R.S./Univ. J. Fourier, Grenoble, France
3 Lab. des Matériaux, E.N.S.P.G., I.N.P. Grenoble, France
4 Institut Laue-Langevin, Grenoble, France
J. Phys. Colloques 49 (1988) C8-935-C8-936
DOI: 10.1051/jphyscol:19888426
COMPOSITION, MAGNETIC PROPERTIES AND STRUCTURES OF TWO TYPES OF HEXAGONAL FERRITES : Zn SUBSTITUTED SrMn2-W AND BaCo-Y
G. Litsardakis1, A. Collomb2, M. A. Hadj Farhat3, D. Samaras1, J. Pannetier4, J. P. Mignot3 et J. C. Joubert31 Ecole d'Ing. Electriciens, Univ. Aristote, Thessaloniki, Greece
2 Lab. de Cristallographie, C.N.R.S./Univ. J. Fourier, Grenoble, France
3 Lab. des Matériaux, E.N.S.P.G., I.N.P. Grenoble, France
4 Institut Laue-Langevin, Grenoble, France
Abstract
The magnetic properties of Sr (ZnxMnl-x)2 Fe16O27 (x = 0, 0.33, 0.5) and Ba2Co2Fe12O22 are examined. From neutron diffraction data the composition and cationic distribution are determined. Zn2+ and Mn2+ are in the tetrahedral sites of S, while Co2+ enter preferentially the octahedral sites between S and T blocks. The magnetic structures of the W-type compounds are collinear.