Title :
Dynamic coupling of SGEMP cavity fields to particulate magnetic media
Author :
Markes, M.E. ; Book, P.S.
Author_Institution :
Kaman Sci. Corp., Colorado Springs, CO, USA
fDate :
12/1/1989 12:00:00 AM
Abstract :
An idealized dynamic model for magnetization reversal of a magnetic recording particle is solved numerically for damped oscillating fields over a range of frequencies. The adjustable parameters in the model are set by matching the model response to measurements obtained from published data. For the particular media studied, the results indicate that the dynamic switching threshold is not significantly lower than the quasi-static threshold and that dynamic upset by box IEMP (interior electromagnetic pulse) fields is unlikely
Keywords :
electromagnetic pulse; magnetic disc storage; magnetic recording; magnetisation reversal; numerical methods; SGEMP cavity fields; box IEMP; damped oscillating fields; dynamic coupling; dynamic switching threshold; dynamic upset; idealized dynamic model; interior electromagnetic pulse; magnetic recording particle; magnetization reversal; model response; numerical method; particulate magnetic media; quasi-static threshold; Coercive force; Couplings; Frequency; Magnetic domains; Magnetic field measurement; Magnetic particles; Magnetic resonance; Magnetization reversal; Perpendicular magnetic recording; Shape;
Journal_Title :
Nuclear Science, IEEE Transactions on
