Effect of a Cr Underlayer on the Magnetic Properties of TbCo Amorphous Films with Perpendicular Anisotropy
Effect of a Cr Underlayer on the Magnetic Properties of TbCo Amorphous Films with Perpendicular Anisotropy
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DOI：
10.1088/0256-307x/19/10/340
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发表时间：
2002-10
影响因子：
3.5
通讯作者：
Huang Zhi-xin;Li Zuoyi;Jin Fang;Cheng Xiao-min;Xu Xiao-hong;L. Zhen;Wang Xian-ran;Lin Geng-Qi
中科院分区：
文献类型：
--
作者：
Huang Zhi-xin;Li Zuoyi;Jin Fang;Cheng Xiao-min;Xu Xiao-hong;L. Zhen;Wang Xian-ran;Lin Geng-Qi
研究了铬底层对垂直各向异性TbCo非晶薄膜磁性能的影响。研究发现，铬底层厚度会影响TbCo薄膜的矫直力。在具有180 nm铬底层的120 nm Tb31Co69薄膜中获得了高达6.3 kOe的矫直力。对于相同厚度的无铬衬底的Tb31Co69薄膜，这仅为4.4KoE。横截面扫描电子显微镜表明，以铬为底层的TbCo薄膜为柱状结构。我们认为，这种异质结构导致了TbCo薄膜在存在铬底层时的矫直力增强。
The effect of the Cr underlayer on the magnetic properties of TbCo amorphous films with perpendicular anisotropy has been investigated. It was found that the Cr underlayer thickness can influence the coercivity of TbCo films. A coercivity as high as 6.3 kOe was obtained in 120 nm Tb31Co69 films with a 180 nm Cr underlayer. This was only 4.4 kOe for the same thickness Tb31Co69 films without the Cr underlayer. Cross-sectional scanning electron microscopy indicated that the TbCo film with the Cr underlayer consisted of a column structure. It is considered that this heterogeneous structure gives rise to the coercivity enhancement of TbCo films in the presence of the Cr underlayer.