Interlayer coupling and switching field of exchange coupled media
Interlayer coupling and switching field of exchange coupled media
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DOI：
10.1063/1.3068651
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发表时间：
2009-03
影响因子：
3.2
通讯作者：
K. Pandey;Jingsheng Chen;G. Chow;J. Hu;B. Lim
中科院分区：
文献类型：
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作者：
K. Pandey;Jingsheng Chen;G. Chow;J. Hu;B. Lim
研究了层间耦合对Co 72 Pt 28-SiO2（硬）/Co-SiO2（软）交换耦合介质的反转场和磁化反转机制的影响。软层的厚度小于畴壁的宽度，遵循畴壁辅助的开关机制，用于硬层和软层之间的直接层间耦合。这是有效的，在显着降低开关场。硬层和软层之间的层间耦合的强度通过在它们之间插入Pt中间层来控制。降低层间耦合导致硬层和软层的独立切换，并且在降低切换场方面是无效的。
The effects of interlayer coupling on switching field and magnetization reversal mechanism of Co72Pt28–SiO2(hard)/Co–SiO2(soft) exchange coupled media were investigated. The soft layer, with thickness less than the domain wall width, followed domain wall assisted switching mechanism for direct interlayer coupling between the hard and soft layers. It was effective in significantly reducing the switching field. The strength of interlayer coupling between the hard and soft layers was controlled by inserting the Pt intermediate layer between them. The reduced interlayer coupling led to independent switching of the hard and the soft layer and was ineffective in reducing the switching field.