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Spectral response nulls for single-pole heads in perpendicular recording

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2 Author(s)
Wilton, D.T. ; Sch. of Math. & Stat., Plymouth Univ., UK ; Middleton, Barry K.

This letter discusses the dependence of the nulls in the spectral response function of a single-pole head, used in perpendicular magnetic recording with a double-layer medium, upon the pole thickness and the distance between the pole and the underlayer. Exact results from a two-dimensional model are used to produce approximate but accurate relationships, and are compared with previously published theoretical and experimental results where full data are available

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Magnetics, IEEE Transactions on  (Volume:32 ,  Issue: 6 )