Preparation and properties of (Sm,Nd)(Tb,Dy)Co thin film with perpendicular anisotropy

Fang Jin; Zuoyi Li; Weiming Cheng; Xiang Sun; Xiaomin Cheng; Li Zhen; Gengqi Lin

doi:10.1117/12.649610

15 September 2005 Preparation and properties of (Sm,Nd)(Tb,Dy)Co thin film with perpendicular anisotropy

Fang Jin, Zuoyi Li, Weiming Cheng, Xiang Sun, Xiaomin Cheng, Li Zhen, Gengqi Lin

Proceedings Volume 5966, Seventh International Symposium on Optical Storage (ISOS 2005); 59660E (2005) https://doi.org/10.1117/12.649610
Event: Seventh International Symposium on Optical Storage (ISOS 2005), 2005, Zhanjiang, China

Abstract

The (Sm,Nd)(Tb,Dy)Co thin Film had been prepared with spf-430H r.f.-magnetron sputtering system. The effects of heavy rare earth Tb, Dy substituted by light rare earth Sm, Nd on the magnetic and magneto-optical properties have been investigated. With the increasing of light rare earth Sm, Nd composition, the saturation magnetization Ms, the reflectivity R and the Kerr rotation angle θ_k are increased, while the coercivity (Hc) is decreased distinctly. This can be explained with the ferri-magnetic structure of RE-TM alloy. Mr/Hc Ratio is increased with the increasing of Sm composition in SmTbCo and SmDyCo. The influence of composition and sputtering conditions on perpendicular anisotropy films are reported in detail.

Citation Download Citation

Fang Jin, Zuoyi Li, Weiming Cheng, Xiang Sun, Xiaomin Cheng, Li Zhen, and Gengqi Lin "Preparation and properties of (Sm,Nd)(Tb,Dy)Co thin film with perpendicular anisotropy", Proc. SPIE 5966, Seventh International Symposium on Optical Storage (ISOS 2005), 59660E (15 September 2005); https://doi.org/10.1117/12.649610

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