Perpendicular exchange bias of (Pt/Co)_n/FeMn multilayers  

作　　者：Zhonghai Zhai Yang liu Jiao Teng Baohe Li Guanghua Yu Fengwu Zhu 

机构地区：[1]Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China [2]College of Science, Shenyang Jianzhu University, Shenyang 110168, China [3]Department of Mathematics and Physics, Beijing Technology and Business University, Beijing 100037, China

出　　处：《Journal of University of Science and Technology Beijing》2007年第6期543-546,共4页北京科技大学学报（英文版）

基　　金：This work was financially supported by the National Natural Science Foundation of China (No.50471093);the Science Founda-tion of Beijing (No.2052014)

摘　　要：（Pt/Co）n/FeMn multilayers with perpendicular anisotropy （PA） were prepared by magnetron sputtering with Pt as the buffer layer and the capping layer. The dependence of perpendicular exchange bias （PEB）, Hex, on the thickness of the FeMn anfiferromagnet （AFM） layer is similar to that of in-plane exchange bias. The value of Hex for the （Pt/Co）3/FeMn multilayer reaches 22.3 kA/m. A thin Pt spacer was inserted between the Co/FeMn interface to enhance PEB. The PEB reaches the largest at 39.8 kA/m when the thickness of the Pt spacer is 0.4 nm.（Pt/Co）n/FeMn multilayers with perpendicular anisotropy （PA） were prepared by magnetron sputtering with Pt as the buffer layer and the capping layer. The dependence of perpendicular exchange bias （PEB）, Hex, on the thickness of the FeMn anfiferromagnet （AFM） layer is similar to that of in-plane exchange bias. The value of Hex for the （Pt/Co）3/FeMn multilayer reaches 22.3 kA/m. A thin Pt spacer was inserted between the Co/FeMn interface to enhance PEB. The PEB reaches the largest at 39.8 kA/m when the thickness of the Pt spacer is 0.4 nm.

关 键 词：exchange bias perpendicular anisotropy TEXTURE MULTILAYERS 

分 类 号：O4[理学—物理]