In-plane Uniaxial Anisotropy and Magnetization Reversal Mechanism of FeCo Films by Strip Pattern

作     者：Xuemeng Han Jinhua Ma Zhen Wang Yalu Zuo Li Xi 

作者机构：Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education Lanzhou University 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2014年第27卷第6期

页      面：1099-1104页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0703[理学-化学] 0811[工学-控制科学与工程] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 51171076 and 51101079) the Fundamental Research Funds for Central Universities (Nos. lzujbky-2010-172 and Lzujbky-2012-27) 

主　　题：In plane anisotropy Fe Co film Strip patterned Switching field 

摘      要：Strip-like Fe Co films were patterned by a traditional lithograph process from intrinsically isotropic continuous Fe Co films. The strip-patterned Fe Co film shows a strong in-plane uniaxial magnetic anisotropy with easy axis along the length direction of the strip. The angular dependences of remanence ratio, switching field, and coercivity indicate that the magnetization reversal mechanism of the strip-patterned Fe Co film is coherent rotation and domain wall depinning when the applied field is near the hard axis and easy axis, respectively. The consistency of the experimental hysteresis loops of the strip-patterned Fe Co film and calculated hysteresis loops with a simple in-plane uniaxial anisotropy model indicates that the strip-patterned Fe Co film behaves as a single domain. The absence of the domain wall and the strong in-plane anisotropy field make the strip-patterned Fe Co films have much potential for high-frequency application.