Magnetic Interactions in Hematite Small Particles obtained by Ball-Milling

RODOLFO ALBERTO BORZI; J. STEWART, S.; PUNTE, G.; C. MERCADER, R.; VASQUEZ-MANSILLA, M.; ZYSLER, R. D.; CABANILLAS, E. D.

Journal of Magnetism and Magnetic Materials

Elsevier

Año: 1999 vol. 205 p. 234 - 234

0304-8853

Pure hematite particles of an average size of 14 nm were obtained after ball milling -Fe O in a vertical vibrating mixer mill for 10 h. Mossbauer and magnetization measurements indicate the existence of strong interparticle interactions that can be varied by the dispersion of the particles in different ways.