| 写磁头对记录介质中输出信号的影响 |
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| 引用本文： | 姜文红,罗四维,中村庆久.写磁头对记录介质中输出信号的影响[J].物理学报,2002,51(1):167-170. |
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| 作者姓名： | 姜文红 罗四维 中村庆久 |
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| 作者单位： | (1)北方交通大学计算机与信息技术学院,北京100044; (2)日本东北大学电气通信研究所,日本宫城县仙台市 |
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| 基金项目： | 北方交通大学论文基金资助的课题 |
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| 摘 要： | 在对垂直二层膜介质的输出信号随时间衰减的实验测试中,发现当使用单磁极磁头兼作读写磁头时,输出电压的变化量很大.通过对这一现象的研究发现,影响介质退磁的外界原因主要有磁头主磁极膜磁畴的不稳定性和信号读出过程中主磁极对外界游离磁场的汇集吸收作用.同时提出了解决方案
关键词：
衰减
垂直二层膜介质
单磁极磁头
磁畴
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| 关 键 词： | 衰减 垂直二层膜介质 单磁极磁头 磁畴 |
| 收稿时间： | 2001-03-28 |
| 修稿时间： | 7/6/2001 12:00:00 AM |
Influence of the single-pole head on output-time decay in a perpendicular double-layered medium |
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| Jiang Wen\|Hong,\ Luo Si\|Wei,\ Zhongcun Qingjiu.Influence of the single-pole head on output-time decay in a perpendicular double-layered medium[J].Acta Physica Sinica,2002,51(1):167-170. |
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| Authors: | Jiang Wen\|Hong \ Luo Si\|Wei \ Zhongcun Qingjiu |
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| Institution: | Jiang Wen\|Hong 1) \ Luo Si\|Wei 1) \ Zhongcun Qingjiu 2) 1) |
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| Abstract: | In measurements of time decay in a perpendicular double\|layered medium,a large output decay was observed when a regular single\|pole head was used for both writing and reading.Investigations of this phenomenon revealed that the demagnetization of the medium was caused by the instability of the domain wall of the main pole film and also by the concentration of strayfields by the main pole during the reading process.Several countermeasures were proposed. |
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| Keywords: | time decay perpendicular double\|layered media single\|pole head domain wall |
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