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Off-Track and Azimuth Angle Effects in Perpendicular Replay

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3 Author(s)
Shute, H.A. ; Sch. of Math. & Stat., Univ. of Plymouth ; Mallinson, J.C. ; Wilton, D.T.

We investigated the effects of transition curvature on T50 and Vp-p for a shielded giant magnetoresistive (GMR) element reading a single, isolated transition recorded on a perpendicular medium in the presence of a soft magnetic underlayer. We considered displacement and rotation of the read head relative to the recorded track and a range of read head geometries. The curvature of the transition adversely affects T50, which also increases with azimuth angle. Both T50 and Vp-p decrease as either the GMR element or the element-side shield spacing is reduced

Published in:

Magnetics, IEEE Transactions on  (Volume:43 ,  Issue: 5 )

Date of Publication:

May 2007

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