Method for Analysis of On-Track and Off-Track Shielded Magnetic Write Head Recording Performance Based on Write Current Waveform Shaping
This paper introduces a method of simultaneous analysis of on-track and off-track recording performance for arbitrary write current waveforms using a side-shielded writer. The method successfully combines accurate micromagnetic modeling of the recording process on a nanosecond time scale and analyti...
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| Veröffentlicht in: | IEEE transactions on magnetics 2012-11, Vol.48 (11), p.3911-3914 |
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| container_title | IEEE transactions on magnetics |
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| creator | Livshitz, Boris Goldberg, Jason S. |
| description | This paper introduces a method of simultaneous analysis of on-track and off-track recording performance for arbitrary write current waveforms using a side-shielded writer. The method successfully combines accurate micromagnetic modeling of the recording process on a nanosecond time scale and analytical estimates of recording performance. Off-track performance is evaluated using a media thermal barrier approach defined on very long time scale. The strength of the method is validated for various parameters of the write current waveform, such as steady state current and overshoot amplitude. The obtained modeling results match experimental results elucidated in literature. This study enables HDD system optimization, permitting recording optimization for shielded write head designs with various write current waveform shapes. |
| doi_str_mv | 10.1109/TMAG.2012.2207377 |
| format | Article |
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| ispartof | IEEE transactions on magnetics, 2012-11, Vol.48 (11), p.3911-3914 |
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| language | eng |
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| source | IEEE |
| subjects | Cross-disciplinary physics: materials science rheology Exact sciences and technology Magnetic heads Magnetic recording Magnetic write head Magnetism Magnetization Materials science Measurement Media micromagnetic modeling Micromagnetics Other topics in materials science perpendicular magnetic recording (PMR) Physics Switches |
| title | Method for Analysis of On-Track and Off-Track Shielded Magnetic Write Head Recording Performance Based on Write Current Waveform Shaping |
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