Effect of chromium interlayer on magnetic exchange coupling of SmCo/Cr/TbFeCo multilayer thin films  

作　　者：张峰 黄致新 兰智高 崔增丽 郭继花 程伟明 杨晓非 

机构地区：[1]College of Physical Science and Technology, Central China Normal University [2]College of Physical Science and Technology, Huanggang Normal University [3]Department of Electronic Science and Technology, Huazhong University of Science and Technology

出　　处：《Journal of Rare Earths》2008年第3期375-377,共3页稀土学报（英文版）

基　　金：the Major Project of National Natural Science Foundation of China (60490290);the National Natural Science Founda-tion of China (60571010);the Natural Science Foundation of Hubei Province (2005ABA041)

摘　　要：A series of SmCo/Cr/TbFeCo multilayer thin films with perpendicular anisotropy were prepared by RF- magnetron sputtering system, and the effects of Cr interlayer thickness on magnetic properties and interlayer exchange coupling were investigated. It was found that the magnetic properties varied with the thickness of Cr interlayer, especially the values of saturation magnetization Ms and the coercivity Hc fluctuated periodically with the thickness of Cr interlayer. STM images revealed that the variation of coercivity Hc was attributed to the microstructure change of SmCo layer influenced by Cr interlayer, and the variation of Ms was related to interlayer exchange coupling.A series of SmCo/Cr/TbFeCo multilayer thin films with perpendicular anisotropy were prepared by RF- magnetron sputtering system, and the effects of Cr interlayer thickness on magnetic properties and interlayer exchange coupling were investigated. It was found that the magnetic properties varied with the thickness of Cr interlayer, especially the values of saturation magnetization Ms and the coercivity Hc fluctuated periodically with the thickness of Cr interlayer. STM images revealed that the variation of coercivity Hc was attributed to the microstructure change of SmCo layer influenced by Cr interlayer, and the variation of Ms was related to interlayer exchange coupling.

关 键 词：INTERLAYER exchange coupling multilayer thin films rare earths 

分 类 号：TB383.2[一般工业技术—材料科学与工程]