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Skew angle and off-track capability of near contact recording systems

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3 Author(s)
Sheng-Bin Hu ; Magnetics Technol. Centre, Nat. Univ. of Singapore, Singapore ; Liu, Bo ; Teck-Seng Low

Various sliders for near-contact recording systems have begun to appear in high areal density disk drives. In this paper, systematic investigations were conducted to evaluate the effects of skew angle on off-track capability of near-contact recording systems. Tri-pad sliders were used in the investigations. The spacings between read/write elements and disk surface were in the range of 0.6~1.2 μin. The off-track capability is reduced and the noise level of residual signal after overwriting is increased, when skew angle is increased. A large skew angle also makes the off-track capability asymmetric and sensitive to off-track direction. However, increased skew angle reduces the track-to-track interference in the writing operation

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Magnetics, IEEE Transactions on  (Volume:32 ,  Issue: 5 )