作者机构：
[Huang, ZX] Huazhong Univ Sci & Technol, Dept Solid State Elect, Wuhan 430074, Peoples R China.;Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
通讯机构：
[Huang, ZX] H;Huazhong Univ Sci & Technol, Dept Solid State Elect, Wuhan 430074, Peoples R China.
关键词：
TbCo非晶薄膜;磁性质;铬衬底
摘要：
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 120nm Th31 Co69 films with a 180nm Cr underlayer. This was only 4:4 kOe for the same thickness Tb31 Co69 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.
