Title :
Interaction fields and the anhysteretic susceptibility of recording media
Author :
Spratt, G.W.D. ; Fearon, M. ; Bissell, P.R. ; Lyberatos, A. ; Chantrell, R.W. ; Wohlfarth, E.P.
Author_Institution :
Sch. of Phys. & Astron., Lancashire Polytech., Preston, UK
fDate :
3/1/1988 12:00:00 AM
Abstract :
The effects of particle/particle interactions on the anhysteretic behavior of recording media have been investigated. The interactions were varied by changing the temperature at which the measurements were carried out, thereby decreasing the local magnetic order and consequently the interaction field strength. An increase in the anhysteretic susceptibility with increasing temperature was found experimentally. In some systems the change was up to 50% over the range 77 K\n\n\t\t
Keywords :
Monte Carlo methods; digital simulation; magnetic properties of fine particles; magnetic recording; magnetic susceptibility; remanence; Monte Carlo model; anhysteretic susceptibility; computer simulation; demagnetization remanence curves; interaction field strength; local magnetic order; magnetization; particle/particle interactions; recording media; Astronomy; Computer simulation; Demagnetization; Extraterrestrial measurements; Magnetic field measurement; Magnetic recording; Magnetization; Physics; Powders; Temperature distribution;
Journal_Title :
Magnetics, IEEE Transactions on
