Dependence of magneto-optical properties on dimensional factors for Co/Pt multilayers recording media

Yongli Zhang; Huiyun Li; Hui Zhao

doi:10.1117/12.416808

7 February 2001 Dependence of magneto-optical properties on dimensional factors for Co/Pt multilayers recording media

Yongli Zhang, Huiyun Li, Hui Zhao

Proceedings Volume 4085, Fifth International Symposium on Optical Storage (ISOS 2000); (2001) https://doi.org/10.1117/12.416808
Event: Fifth International Symposium on Optical Storage (IS0S 2000), 2000, Shanghai, China

Abstract

The MO properties of Co/Pt multilayers (MLs) depend fundamentally on the periodic structure of the multilayers. In this paper, the influences of Co layer thickness, the atom proportion of Co and Pt, and sputtering temperature on the MO properties of Co/Pt multilayers are studied. The results prove that the MO properties of Co/Pt multilayers strongly depend on the Co layer thickness and the atom proportion of Co and Pt. When t_Co < 0.4 nm, and t_CO/t_Pt equals 1/2, the multilayers have better comprehensive MO properties; when the sputtering substrate temperature is raised up to a proper degree, the crystallinity of the multilayers is improved and better periodic structure is obtained, which finally improves the MO properties of Co/Pt multilayers. We also studied factors which affect the T_C of Co/Pt MLs, and found that doping the Co layer with rare earth elements is an effective way to decrease the T_C of Co/Pt MLs, it might promote Co/Pt MLs into the stage of practical uses, but more detailed research work should be done further.

Citation Download Citation

Yongli Zhang, Huiyun Li, and Hui Zhao "Dependence of magneto-optical properties on dimensional factors for Co/Pt multilayers recording media", Proc. SPIE 4085, Fifth International Symposium on Optical Storage (ISOS 2000), (7 February 2001); https://doi.org/10.1117/12.416808

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