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Newly developed linear signal analysis and its application to the estimation on playback voltage of narrow track GMR heads at an areal density of 40 Gb/in2
被引：0
|作者：
Hashimoto, M
[1
]
机构：
[1] Sony Corp Core Technol & Network Co, CT Dev Ctr, Yokohama, Kanagawa 2400036, Japan
来源：
IEICE TRANSACTIONS ON ELECTRONICS
|
1999年
/
E82C卷
/
12期
关键词：
linear signal analysis;
GMR head;
playback voltage;
pulse width;
domain control magnet;
D O I：
暂无
中图分类号：
TM [电工技术];
TN [电子技术、通信技术];
学科分类号：
0808 ;
0809 ;
摘要：
Linear signal analysis (LSA) is the conventional method of estimating the playback voltage and pulse width in linearly operating shielded GMR heads. To improve the accuracy of LSA, a new, highly precise LSA which includes the effect of the magnetization distribution in the medium and inhomogeneous biasing by domain control magnets, was developed. Utilizing this new LSA to calculate the playback waveforms, the calculated peak voltage and pulse width were compared with the experimental values and agreement within 10% was obtained. As the result of estimation using the new LSA, it is considered that the use of a vertical-type spin-valve head will make it possible to achieve a recording areal density of 40 Gb/in(2).
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页码：2227 / 2233
页数：7
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