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Issue J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-1849 - C8-1850
DOI http://dx.doi.org/10.1051/jphyscol:19888846

Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-1849-C8-1850
DOI: 10.1051/jphyscol:19888846

BaFe12O19 SMALL PARTICLES : FORMATION. PARTICLE SIZE AND MAGNETIC PROPERTIES

R. Ardiaca1, M. Medarde2, X. Obradors1, M. Vallet3, M. Pernet4, J. Rodríguez2 et J. Fontcuberta1

1  Dep. Física Fonamental. Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain
2  I.L.L., 156X, 38042 Grenoble, Francia
3  Fac. Química. Universidad Complutense, 28040 Madrid, Spain
4  Lab. Cristallographie, CNRS 166X, Grenoble, Francia


Abstract
Small particles of BaFe12O19 are prepared at low temperature by a liquid mix technique. By using X-ray diffraction, Mössbauer, and magnetic measurements we show that this method allows an easy control of the size and shape (400 Å-3 000 Å) of the particles, which display essentially bulk magnetic properties.