Abstract
Previous attempts to explain the dependence of the transverse susceptibility (TS) on the DC field predict the occurence of a maximum at the particle anisotropy field ( H K ). We demonstrate that the TS is also very sensitive to the particle volume distribution, which strongly influences the magnitude of the TS peak and the corresponding value of the DC field. The DC field has the same effect on the TS as the temperature on the AC susceptibility, giving rise to a complex TS with invaluable applications for recording media, like the determination of the particle volume and anisotropy field distributions.
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