| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-939 - C8-940 | |
| DOI | https://doi.org/10.1051/jphyscol:19888428 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-939-C8-940
DOI: 10.1051/jphyscol:19888428
1 Fac. Fisica. Universitat de Barcelona, Diagonal 647. 08028 Barcelona, Spain
2 I.L.L., 156X, 38042 Grenoble, France.
3 Lab. Cristallographie, CNRS 166X, Grenoble, France.
4 Fac. Quimica. Universidad Complutense, 28040 Madrid, Spain.
J. Phys. Colloques 49 (1988) C8-939-C8-940
DOI: 10.1051/jphyscol:19888428
CATIONIC DISTRIBUTION IN BaFe12-2xCoxSnxO19 HEXAGONAL FERRITES SUITABLE FOR MAGNETIC RECORDING
X. Batlle1, J. Rodriguez2, X. Obradors1, M. Pernet3, M. Vallet4 et J. Fontcuberta11 Fac. Fisica. Universitat de Barcelona, Diagonal 647. 08028 Barcelona, Spain
2 I.L.L., 156X, 38042 Grenoble, France.
3 Lab. Cristallographie, CNRS 166X, Grenoble, France.
4 Fac. Quimica. Universidad Complutense, 28040 Madrid, Spain.
Abstract
The cation distribution in the BaFe12-2xCoxSnxO19 compounds has been investigated by means of powder neutron diffraction. The atomic occupancies of the 2a, 4e and 4fiv are unambigously determined while the atomic contents of the 12k and 4fvi octahedral positions are strongly delimited. A considerable amount of Co ions occupy the tetrahedral positions thus reducing the effect of these ions as a source of the decrease of the uniaxial anisotropy.