Recorded magnetization analysis by computer simulation

A new method is proposed for accurately differentiating between an effective recorded-track area and an erase band by making a correlative evaluation of the magnetic-pole density distribution. At each end of an effective track, there is an area where a magnetization transition phase-shift occurs. Th...

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Published in:IEEE transactions on magnetics 1996-09, Vol.32 (5), p.3512-3514
Main Authors: Tsuchiya, R., Teshigahara, K., Yoshida, K., Hara, M., Aihara, M., Shiroishi, Y.
Format: Article
Language:English
Subjects:
Computer simulation
Correlation
Disk recording
Magnetic analysis
Magnetic anisotropy
Magnetic flux
Magnetic heads
Magnetic recording
Perpendicular magnetic anisotropy
Saturation magnetization
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description A new method is proposed for accurately differentiating between an effective recorded-track area and an erase band by making a correlative evaluation of the magnetic-pole density distribution. At each end of an effective track, there is an area where a magnetization transition phase-shift occurs. This phase-shift area causes interference between consecutive bits at high-density recording, and reduce the effective track width. Also, an erase band is formed just outside the effective track. Simulation showed that the phase-shift area and the erase band are affected by the recording field distribution and narrowing the gap length, and reducing the recording magnetic field can effectively reduce these areas.
doi_str_mv 10.1109/20.538674
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1941-0069
language eng
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source IEEE Electronic Library (IEL) Journals
subjects Computer simulation
Correlation
Disk recording
Magnetic analysis
Magnetic anisotropy
Magnetic flux
Magnetic heads
Magnetic recording
Perpendicular magnetic anisotropy
Saturation magnetization
title Recorded magnetization analysis by computer simulation
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