Title :
Vector form of wipe-out memory and its experimental testing
Author :
Friedman, G. ; Cha, K. ; Huang, Y. ; Kouvel, J.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
It was recently suggested that, when magnetic field varies arbitrarily in both direction and magnitude, certain portions of the magnetic field trajectory can be replaced without any effect on the resulting magnetization and its subsequent evolution. Here, this vector form of wipe-out memory is tested experimentally for particulate iron oxide magnetic medium using a vibrating sample magnetometer by generating magnetic field trajectories that are self-crossing. It is shown that for the class of the trajectories considered here the suggested vector form of wipe-out memory is agrees well with experimental data
Keywords :
iron compounds; magnetic hysteresis; magnetic particles; magnetic storage; magnetisation; Fe2O3; iron oxide particulate medium; magnetic field; magnetic hysteresis; magnetization; self-crossing trajectory; vector Preisach model; vibrating sample magnetometer; wipe-out memory; Atmospheric modeling; Automatic testing; Iron; Magnetic fields; Magnetic hysteresis; Magnetic materials; Magnetization; Magnetometers; Physics; Predictive models;
Journal_Title :
Magnetics, IEEE Transactions on