J. Phys. IV France
Volume 08, Numéro PR2, June 1998
Soft Magnetic Materials 13
Page(s) Pr2-11 - Pr2-18
Soft Magnetic Materials 13

J. Phys. IV France 08 (1998) Pr2-11-Pr2-18

DOI: 10.1051/jp4:1998202

Interface magnetism in Fe-based nanocrystalline alloys

A. Slawska-Waniewska

Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

Nanoscale materials exhibit properties that can not be find in larger scale system due to the crystal size effects as well as structural variations between the interfacial regions and the crystalline interior. In this paper the consideration of the finite-size effects are limited to a special class of nonconventional granular materials produced by the devitritication of Fe-based amorphous ribbons. The complementary microstructural and magnetic studies show that in such mesoscopie systems the interfaces exhihit identifiable properties. The data presented do not provide the detailed picture of the internal structure of the boundary regions but bring information about their basic structural and magnetic properties. In particular the influence of the magnetic state of the intergranular amorphous matrix (ferroor paramagnetic) on the local magnetic behavior of the interfaces is considered. The effect of the symmetry restriction at grain boundaries on the structurally sensitive parameter such as a magnetostriction is also presented and discussed.

© EDP Sciences 1998