Title :
Grain-size dependence of anhysteresis in iron oxide micropowders
Author :
Dunlop, David J.
Author_Institution :
University of Toronto, Toronto, Ont., Canada.
fDate :
6/1/1972 12:00:00 AM
Abstract :
The low-field anhysteresis of small equidimensional multidomain particles of Fe3O4is found to be surprisingly large. For particle sizes below about 0.075 μm the anhysteretic susceptibility equals or surpasses that of elongated or doped equidimensional single-domain γFe2O3particles used in conventional recording tapes.
Keywords :
Iron oxides; Magnetic tape recording; Magnetization processes; Crystals; Hysteresis; Iron; Magnetic field induced strain; Magnetic recording; Magnetic susceptibility; Magnetostriction; Powders; Remanence; Saturation magnetization;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1972.1067286
