Ap. Warren et al., NOISE TIME-SERIES SIMULATION FOR A THIN-FILM RECORDING MEDIUM, Journal of magnetism and magnetic materials, 155(1-3), 1996, pp. 19-21
A previously developed simulation of a thin film recording medium has
been extended to include evaluation of noise characteristics. The reco
rding medium has been taken through the dc demagnetisation curve and n
oise characteristics at various remanent states computed for three deg
rees of inter-granular exchange coupling. The IRM curves were also com
puted, to allow the computation of the delta M(H) curves. The remanenc
e curves and noise curves were in good agreement with experiment. It w
as found that the peak in the noise curves for all three degrees of ex
change coupling occurred at approximately the same field as the maximu
m slope in the delta M(H) curves.