Title :
Ordering in cobalt-ferrous ferrites
Author :
Wijn, H.P.J. ; Van der Heide, H. ; Fast, J.F.
Author_Institution :
N.V. Philips´´ Gloeilampenfabrieken, Philips Research Laboratories, Eindhoven, Netherlands
fDate :
5/10/1905 12:00:00 AM
Abstract :
Various cobalt-ferrous ferrites show a constricted hysteresis loop. After magnetic annealing of the samples the loop becomes rectangular. It appears that the magnetic annealing creates in each crystal a uniaxial anisotropy in a direction which is not necessarily the direction of the applied magnetic field but a crystallographic direction nearest to it. It is suggested that directional ordering is the most probable origin of the anisotropy found.
Keywords :
cobalt compounds; crystal structure; ferrites; magnetic hysteresis;
Journal_Title :
Proceedings of the IEE - Part B: Radio and Electronic Engineering
DOI :
10.1049/pi-b-1.1957.0075
