Effect of A Cr Underlayer on the Magnetic Properties of TbCo
Amorphous Films with Perpendicular Anisotropy

Chin. Phys. Lett.

2002, Vol. 19

Issue (10): 1531-1533 DOI:

Original Articles

Effect of A Cr Underlayer on the Magnetic Properties of TbCo Amorphous Films with Perpendicular Anisotropy

HUANG Zhi-Xin^1,2;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

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HUANG Zhi-Xin, LI Zuo-Yi, JIN Fang et al 2002 Chin. Phys. Lett. 19 1531-1533

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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.

Keywords: 75.70.-i 78.20.Ls

Published: 01 October 2002

PACS:	75.70.-i	(Magnetic properties of thin films, surfaces, and interfaces)
	78.20.Ls	(Magneto-optical effects)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I10/01531

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	HUANG Zhi-Xin
	LI Zuo-Yi
	JIN Fang
	CHENG Xiao-Min
	XU Xiao-Hong
	LI Zhen
	WANG Xian-Ran
	LIN Geng-Qi

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