Temperature dependence of LRE-HRE-TM thin films

Zuoyi Li; Xiaomin Cheng; Gengqi Lin; Zhen Li; Zhixin Huang; Fang Jin; Xianran Wang; Xiaofei Yang

doi:10.1117/12.510238

9 April 2003 Temperature dependence of LRE-HRE-TM thin films

Zuoyi Li, Xiaomin Cheng, Gengqi Lin, Zhen Li, Zhixin Huang, Fang Jin, Xianran Wang, Xiaofei Yang

Proceedings Volume 5060, Sixth International Symposium on Optical Storage (ISOS 2002); (2003) https://doi.org/10.1117/12.510238
Event: Sixth International Symposium on Optical Storage (ISOS 2002), 2002, Wuhan, China

Abstract

Temperature dependence of the properties of RE-TM thin films is very important for MO recording. In this paper, we studied the temperature dependence of the magnetic and magneto-optical properties of the amorphous LRE-HRE-TM single layer thin films and LRE-HRE-TM/HRE-TM couple-bilayered thin films. For LRE-HRE-TM single layer thin films, the temperature dependence of the magnetization was investigated by using the mean field theory. The experimental and theoretical results matched very well. With the LRE substitution in HRE-TM thin film, the compensation temperature T_comp decreased and the curie temperature Tc remained unchanged. Kerr rotation angle became larger and the saturation magnetization Ms at room temperature increased. For LRE-HRE-TM/HRE-TM couple-bilayered thin films, comparisons of the temperature dependences of the coercivities and Kerr rotation angles were made between isolated sublayers and couple-bilayered thin film.

Citation Download Citation

Zuoyi Li, Xiaomin Cheng, Gengqi Lin, Zhen Li, Zhixin Huang, Fang Jin, Xianran Wang, and Xiaofei Yang "Temperature dependence of LRE-HRE-TM thin films", Proc. SPIE 5060, Sixth International Symposium on Optical Storage (ISOS 2002), (9 April 2003); https://doi.org/10.1117/12.510238

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