DocumentCode :
1330561
Title :
Magnetocrystalline and Magnetic Surface Anisotropy in Nonepitaxial [Fe/Pt] 
Multilayer Films
Author :
Zhenghua Li ; YanBo Li ; Xi Liu ; Wei Lu ; Jianmin Bai ; Fulin Wei ; Dan Wei
Author_Institution :
Key Lab. for Magn. & Magn. Mater. of the Minist. of Educ., Lanzhou Univ., Lanzhou, China
Volume :
47
Issue :
10
fYear :
2011
Firstpage :
3092
Lastpage :
3095
Abstract :
The FePt thin films with [Fe/Pt]n multilayer structure have been prepared on preheated Corning 1737F glass substrate using pure Fe and Pt target in a CMS-18 sputtering system. The dependence of FePt´s perpendicular anisotropy on the multilayer structure was investigated. It was found that the perpendicular coercivity and remanence ratio could be enhanced in the FePt films by an optimization of the multilayer structure. The mechanism of the perpendicular anisotropy in [Fe/Pt]n multilayer films was analyzed using the micromagnetic models, with careful discussions of the crystalline and interface anisotropies. It was found that the Fe/Pt interfaces play an important role in favoring the perpendicular orientation in the [Fe/Pt]n multilayer films.
Keywords :
coercive force; iron alloys; magnetic epitaxial layers; magnetic multilayers; micromagnetics; perpendicular magnetic anisotropy; platinum alloys; sputter deposition; CMS-18 sputtering system; FePt; corning 1737F glass substrate; crystalline anisotropy; interface anisotropy; magnetic surface anisotropy; magnetocrystalline anisotropy; micromagnetic models; multilayer structure; nonepitaxial multilayer films; perpendicular anisotropy; perpendicular coercivity; perpendicular orientation; remanence ratio; thin films; Anisotropic magnetoresistance; Iron; Magnetic multilayers; Nonhomogeneous media; Perpendicular magnetic anisotropy; Saturation magnetization; Crystalline anisotropy; FePt multilayer; interface anisotropy; micromagnetic;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2011.2147762
Filename :
6027801
Link To Document :
