Low noise performance of CoCrPt single-layer perpendicular magnetic recording media
Low noise performance of CoCrPt single-layer perpendicular magnetic recording media
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DOI：
10.1109/20.908444
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发表时间：
2000-04
期刊：
影响因子：
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通讯作者：
Y. Hirayama;A. Kikukawa;Y. Honda;N. Shimizu;M. Futamoto
中科院分区：
文献类型：
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作者：
Y. Hirayama;A. Kikukawa;Y. Honda;N. Shimizu;M. Futamoto
研究了高速沉积CoCrPt单层垂直记录介质的磁特性和噪声特性。通过高速率沉积降低了介质噪声，但是在界面处观察到CoCr/sub 19/Pt/sub 10/磁性层和TiCr/sub 10/底层之间的相互扩散。通过在CoCrPt和TiCr层之间引入CoCrRu衬层，磁性能得到改善。在CoCrRu和TiCr层之间添加2 nm厚的MgO层被发现对增加介电常数和降低介质噪声是有用的。
Magnetic and noise characteristics of CoCrPt single-layer perpendicular recording media prepared by high-rate deposition process have been investigated. The medium noise was reduced by high-rate deposition, however the inter-diffusion between the CoCr/sub 19/Pt/sub 10/ magnetic layer and a TiCr/sub 10/ underlayer was observed at the interface. The magnetic properties were improved by introducing a CoCrRu underlayer between the CoCrPt and the TiCr layers. Addition of 2-nm-thick MgO layer between the CoCrRu and the TiCr layers was found to be useful to increase the coercivity and to reduce the medium noise.