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Analytical modelling of perpendicular recording

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2 Author(s)
Wright, C.D. ; University of Salford, Salford, U.K. ; Middleton, B.K.

An analytical model for perpendicular magnetic recording is presented which is capable of calculating 'ab-initio' the magnetisation distributions written by an 'arbitrary' head field into both single and double layer recording media. Magnetisations are shown to follow the head field distribution existing at the medium's top surface. Application of the theory allows prediction of many of the fundamental features of the perpendicular write/read cycle, e.g. transition widths, replay pulse shapes, D50values etc.

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Magnetics, IEEE Transactions on  (Volume:21 ,  Issue: 5 )