Off-Track and Azimuth Angle Effects in Perpendicular Replay
IEEE Transactions on Magnetics（2007）
Abstract
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
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Key words
giant magnetoresistance,magnetic heads,perpendicular magnetic recording,soft magnetic materials,GMR,azimuth angle effect,digital recording,giant magnetoresistive element,magnetic recording,off-track effect,perpendicular recording,perpendicular replay,read head geometry,soft magnetic underlayer,transition curvature,Digital recording,magnetic recording/reading heads,output measures,perpendicular recording
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