论文信息 - Magnetic properties and microstructure of SmCo5 thin film with perpendicular magnetic anisotropy

Magnetic properties and microstructure of SmCo5 thin film with perpendicular magnetic anisotropy

Abstract SmCo5 thin films with Cu seedlayer exhibiting perpendicular magnetic anisotropy were studied. The perpendicular magnetic anisotropy was enhanced using the Sm–Co layer formed by laminating Co and Sm sub-layers alternately. The Co/Sm laminate structure promoted the crystallization of SmCo5 and the preferred orientation of its c-axis. The perpendicular magnetic anisotropy was further improved by suppressing the surface roughness of the Cu seedlayer. The SmCo5 thin film prepared in this study possesses an adequate corrosion resistance when judged by an electrochemical analysis.

[1] Y. Yao,et al. Magnetic hardening mechanism study in FePt thin films , 1999 .

[2] E. Lectard,et al. Saturation magnetization and anisotropy fields in the Sm(Co1−xCux)5 phases , 1994 .

[3] David J. Sellmyer,et al. Phase formation and magnetic properties of Co-rare earth magnetic films , 1998 .

[4] V. Neu,et al. Sputtered Sm–Co films: Microstructure and magnetic properties , 1999 .

[5] Akimitsu Morisako,et al. Fabrication of Sm–Co films with perpendicular magnetic anisotropy , 2004 .

[6] Naoki Honda,et al. Preparation of ordered Fe–Pt thin films for perpendicular magnetic recording media , 1999 .

[7] Tetsuya Osaka,et al. Newly developed SmCo5 thin film with perpendicular magnetic anisotropy , 2004 .

[8] B. Shen,et al. Effect of Cu substitution on structure and magnetic properties of anisotropic SmCo ribbons , 2003 .

[9] F. J. Cadieu,et al. SmCo based sputtered films with CaCu5 and TbCu7 structures , 1997 .

[10] F. J. Cadieu,et al. FULLY IN PLANE ALIGNED SMCO BASED FILMS PREPARED BY PULSED LASER DEPOSITION , 1999 .

[11] Margaret Evans Best,et al. High K/sub u/ materials approach to 100 Gbits/in/sup 2/ , 2000 .

[12] M. Mizukami,et al. Magnetic Stabilities And Noise Characteristics Of High Hc CoSm/Cr Thin Films , 1997, 1997 IEEE International Magnetics Conference (INTERMAG'97).

[13] H. Hegde,et al. Different types of anisotropy in amorphous SmCo films , 1993 .