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Role of M-H loop slope of media for recording properties in perpendicular magnetic recording

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5 Author(s)
Honda, N. ; Akita Res. Inst. of Adv. Technol., Japan ; Kiya, T. ; Ariake, J. ; Ouchi, K.
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Perpendicular magnetic recording media with a high resolution and a low noise property were studied using a micromagnetic simulation. It was suggested that the introduction of a small separation between the adjacent grains is effective to obtain such media increasing the perpendicular M-H loop slope without increasing the domain size. The separation is thought to reduce the demagnetizing field acting on the magnetic grains increasing the M-H loop slope of the grains.

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Magnetics, IEEE Transactions on  (Volume:38 ,  Issue: 5 )