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Measurement of transition shape, width, and total magnetic spacing

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5 Author(s)

Measurement of the harmonics of low-frequency all-ones patterns and the shield-to-shield read gap are used here to reconstruct the spacing, the isolated transition shape, and the width parameter for longitudinal recording. For perpendicular, the media thickness parameters and data at two spacings are needed to accurately determine the spacing and width parameter. The -90% to +90% transition shapes fits well to a tanh(x/a) shape for longitudinal and perpendicular recording.

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Magnetics, IEEE Transactions on  (Volume:40 ,  Issue: 4 )