Interparticle interactions in magnetic recording media as obtained from high-order measurements by a Preisach model
2000; American Institute of Physics; Volume: 87; Issue: 12 Linguagem: Inglês
10.1063/1.373591
ISSN1520-8850
AutoresAlexandru Stancu, P.R. Bissell, R.W. Chantrell,
Tópico(s)Magneto-Optical Properties and Applications
ResumoGeneralized ΔM plots, which allow interactions to be investigated for any starting remanence state, have been used in the analysis of interactions in particulate magnetic recording media for three samples [very high speed (VHS) videotape, Ba-ferrite dispersed particles oriented and nonoriented]. The results have been interpreted using a generalized moving Preisach model. This gives a good fit to the hysteresis loops and ΔM plots. However, agreement with the generalized ΔM plots is less complete. This is interpreted in terms of a requirement for a magnetization dependent standard deviation in the generalized moving Preisach model.
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