Title :
Effects of anisotropy field distributions on magnetic viscosity in particulate recording media
Author :
El-Hilo, M. ; Uren, S.H. ; O´Grady, K. ; Popplewell, J. ; Chantrell, R.W.
Author_Institution :
Sch. of Electron. Eng. Sci., Univ. Coll. of North Wales, Bangor, UK
fDate :
1/1/1990 12:00:00 AM
Abstract :
Theoretical predictions are made of the time-dependent behavior and the irreversible susceptibility of a system of uniaxial, single-domain particles. These results are used to predict the fluctuation field Hf. These predictions are consistent with experimental data on particulate recording media
Keywords :
ferrites; iron compounds; magnetic anisotropy; magnetic properties of fine particles; magnetic recording; Fe2O3; anisotropy field distributions; fluctuation field; irreversible susceptibility; magnetic viscosity; particulate recording media; time-dependent behavior; uniaxial single domain particles; Anisotropic magnetoresistance; Coercive force; Equations; Fluctuations; Magnetic anisotropy; Magnetic materials; Magnetic recording; Perpendicular magnetic anisotropy; Saturation magnetization; Viscosity;
Journal_Title :
Magnetics, IEEE Transactions on
