王伟,宓一鸣,钱士强,周细应

• 1:上海工程技术大学材料工程学院

摘要(Abstract)：

采用直流磁控溅射法制备了TbFe/FeAl超磁致伸缩多层膜,研究了FeAl薄膜的复合对TbFe薄膜磁性能以及热处理温度对TbFe/FeAl磁致伸缩多层膜磁致伸缩系数的影响。结果表明,TbFe层与FeAl层之间的交换耦合作用以及热处理能明显提高薄膜的软磁性能和磁致伸缩性能;与TbFe单层膜相比,TbFe/FeAl多层膜水平方向的矫顽力从59.2kA.m-1降低到29.6kA.m-1;经最佳退火处理(350℃×60min),获得了较低的饱和磁场强度和矫顽力,分别为Hs=96kA.m-1和JHc=16kA.m-1;外加磁场400kA.m-1时,TbFe/FeAl磁致伸缩多层膜磁致伸缩系数可达574×10-6。

关键词(KeyWords)： 超磁致伸缩薄膜;磁控溅射;TbFe/FeAl;交换耦合

Abstract:

Keywords:

基金项目(Foundation): 上海市教育委员会自然科学基金(05NZ03);; 上海市教委重点学科资助项目(XK0706)

作者(Author): 王伟,宓一鸣,钱士强,周细应

参考文献(References)：

• [1]Meydan T,Katranas G S,Ovari T A,et al.A novel phase modulation-based system using bi-layer thin film displacement sensors[J].Journal of Magnetismand Magnetic Materials,2007,310:e986-e988.
• [2]Lim S H,Kim H J,Na S M,et al.Application-related properties of giant magnetostrictive thin films[J].Journal of Magnetism and Magnetic Materials,2002,239:546-550.
• [3]Petit F,Juraszek J,Youssef J B,et al.Effect of annealing on the structural and magnetic properties of giant Magnetostrictive multilayers[J].Journal ofMagnetism and Magnetic Materials,2005,290-291:839-842.
• [4]Zhang W X,Zhang W L,Lin L W,et al.Composition control and its influence to the magnetic properties of TbFex film[J].Journal of Magnetism andMagnetic Materials,2004,280:143-146.
• [5]Quandt E,Ludwig A.Magnetic properties and microstructure of giant magnetostrictive TbFe/FeCo multilayers[J].Journal of Applied Physics,1998,83(11):7267-7269.
• [6]Ruiz D,Angulo L,Abell J S,et al.Influence of hydrogen on the magnetic properties of terfenol-D[J].J Appl Phys,1994,76:7157-7159.

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