Effect of A Cr Underlayer on the Magnetic Properties of TbCo
Amorphous Films with Perpendicular Anisotropy
HUANG Zhi-Xin1,2, LI Zuo-Yi1, JIN Fang1, CHENG Xiao-Min1, XU Xiao-Hong1, LI Zhen1, WANG Xian-Ran1, LIN Geng-Qi1
1Departement of Solid State Electronics, Huazhong University of Science and Technology, Wuhan 430074
2Department of Physics, Central China Normal University, Wuhan 430079
Effect of A Cr Underlayer on the Magnetic Properties of TbCo
Amorphous Films with Perpendicular Anisotropy
1Departement of Solid State Electronics, Huazhong University of Science and Technology, Wuhan 430074
2Department of Physics, Central China Normal University, Wuhan 430079
Abstract: 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. The coercivity as high as 6.3 kOe was obtained in 120 nm Tb31Co69 films with 180 nm Cr underlayer. It 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 the 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.
HUANG Zhi-Xin;LI Zuo-Yi;JIN Fang;CHENG Xiao-Min;XU Xiao-Hong;LI Zhen;WANG Xian-Ran;LIN Geng-Qi. Effect of A Cr Underlayer on the Magnetic Properties of TbCo
Amorphous Films with Perpendicular Anisotropy[J]. 中国物理快报, 2002, 19(10): 1531-1533.
HUANG Zhi-Xin, LI Zuo-Yi, JIN Fang, CHENG Xiao-Min, XU Xiao-Hong, LI Zhen, WANG Xian-Ran, LIN Geng-Qi. Effect of A Cr Underlayer on the Magnetic Properties of TbCo
Amorphous Films with Perpendicular Anisotropy. Chin. Phys. Lett., 2002, 19(10): 1531-1533.
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