J4 ›› 2009, Vol. 47 ›› Issue (05): 1047-1049.

• 物理 • 上一篇    下一篇

Fe54Pt46纳米薄膜的结构与磁性

刘梅1, 张玉梅1, 于永生2, 李海波1, 费维栋2   

  1. 1. 吉林师范大学 凝聚态物理与材料科学研究所, 吉林 四平 136000|2. 哈尔滨工业大学 材料科学与工程学院, 哈尔滨 150001
  • 收稿日期:2008-10-27 出版日期:2009-09-26 发布日期:2009-11-03
  • 通讯作者: 李海波 E-mail:lihaibo@jlnu.edu.cn

Structure and Magnetic Properties of Fe54Pt46Thin Film

LIU Mei1, ZHANG Yu-mei1, YU Yong\|sheng2, LI Hai-bo1, |FEI Wei-dong2    

  1. 1. Institute of Condensed Matter Physics and Materials Science, Jilin Normal University, Siping 136000, Jilin Province, China;2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Received:2008-10-27 Online:2009-09-26 Published:2009-11-03
  • Contact: LI Hai-bo E-mail:lihaibo@jlnu.edu.cn

摘要:

采用磁控溅射法在SiO2〈0001〉基片上制备Fe54Pt46薄膜, 并经过650 ℃原位真空退火1 h. 利用X射线衍射和振动样品磁强计对样品的结构和磁性进行研究. 结果表明, 经过原位真空退火后, 样品发生了无序\|有序相转变, 得到了面心四方结构的L10-FePt纳米薄膜. 样品的有序度为0.92, 晶粒尺寸约为10 nm, 样品平行膜面的矫顽力为0.8 MA/m. 当磁场与膜面的夹角为50°时, 矫顽力达到最大值, 这与(111)面为能量最低面相符. 

关键词: Fe54Pt46薄膜, 磁控溅射, 结构, 磁性

Abstract:

The Fe54Pt46 thin film was deposited on SiO2〈0001〉 substrate by magnetron sputtering system, then the as\|deposited film was vacuum annealed at 650 ℃ in situ. The structure and magnetic properties of the film were investigated by means of X\|ray diffraction and vibrating sample magnetometer. The results indicate that phase transformation from disordered to ordered phase happened after vacuum annealing in situ. The face\|centered tetragonal L10-FePt thin film was obtained. Degree of chemical ordering is 0.92 and grain size is about 10 nm. The in\|plane coercivity of the film has reached 0.8 MA/m. The maximum value of coercivity was gained when the angle between magnetic filed and film surface is 50° corresponding to (111) minimum energy surface.

Key words: Fe54Pt46 thin film, magnetron sputtering, structure, magnetic property

中图分类号: 

  • O482