Quadrupolar interaction in metal particulate recording media

Interparticle interactions in perpendicularly and longitudinally oriented Ba-ferrite particulate media are studied experimentally. In order to make clear the effect of the orientation on the interparticle interactions in the media, the angular dependence of the interaction fields is measured by compensating for the demagnetizing fields at each measurement direction. It is found that perpendicularly and longitudinally oriented Ba-ferrite particulate media exhibit quite different angular dependence of the interaction fields, even though both of the media were prepared using the same dispersion. The study of the magnetic anisotropy derived from the interparticle interactions, which is significantly sensitive to the arrangement of the particles in the media, is considered to be useful for estimating the morphology of the magnetic layer of the media.

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Quadrupolar interaction in metal particulate recording media

Cited by 5 publications

References 35 publications

Interparticle interaction and magnetic anisotropy in vacuum evaporated Co–O perpendicular magnetic thin film

Interparticle interaction and magnetic anisotropy in vacuum evaporated Co–O perpendicular magnetic thin film

Magnetic interaction fields and switching field distribution in metal evaporated tape

Interparticle interactions in perpendicularly and longitudinally oriented Ba-ferrite particulate media

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