FERROMAGNETISM AND SMALL GRAINS
- 1 December 1988
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 49 (C8) , C8-1967
- https://doi.org/10.1051/jphyscol:19888891
Abstract
The rotational permeability µrot has been calculated as a function of grain size d for a model representing a fine-grained crystalline material in which the easy direction of the magnetization varies from grain to grain. If d increases from zero to the domain wall thickness δ, µrot decreases to ≈ 20 % of µrot at d = 0. If magnetostatic effects are also taken into account, the decrease of µrot shifts to higher dKeywords
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