Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (4): 47503-047503.doi: 10.1088/1674-1056/22/4/047503

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Composition influence on the microstructures and magnetic properties of FePt thin films

刘立旺, 党红刚, 盛伟, 王颖, 曹江伟, 白建民, 魏福林   

  1. Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
  • 收稿日期:2012-08-24 修回日期:2012-10-12 出版日期:2013-03-01 发布日期:2013-03-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61003041, 51071088, and 51171086).

Composition influence on the microstructures and magnetic properties of FePt thin films

Liu Li-Wang (刘立旺), Dang Hong-Gang (党红刚), Sheng Wei (盛伟), Wang Ying (王颖), Cao Jiang-Wei (曹江伟), Bai Jian-Min (白建民), Wei FuLin (魏福林)   

  1. Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
  • Received:2012-08-24 Revised:2012-10-12 Online:2013-03-01 Published:2013-03-01
  • Contact: Cao Jiang-Wei E-mail:caojw@lzu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61003041, 51071088, and 51171086).

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摘要： The FexPt100-x (10 nm) (x = 31-51) thin films are fabricated on Si (100) substrates by using magnetron sputtering. The highly ordered L10 FePt phase is obtained after post-annealing at 700 ℃ in Fe47Pt53 thin film. The sample shows good perpendicular anisotropy with a square loop and a linear loop in the out-of-plane and the in-plane direction, respectively. The variations of the magnetic domains are investigated in the films when the content value of Fe changes from 31% to 51%.

关键词: FePt, coercivity, composition, magnetic domain

Abstract: The FexPt100-x (10 nm) (x = 31-51) thin films are fabricated on Si (100) substrates by using magnetron sputtering. The highly ordered L10 FePt phase is obtained after post-annealing at 700 ℃ in Fe47Pt53 thin film. The sample shows good perpendicular anisotropy with a square loop and a linear loop in the out-of-plane and the in-plane direction, respectively. The variations of the magnetic domains are investigated in the films when the content value of Fe changes from 31% to 51%.

Key words: FePt, coercivity, composition, magnetic domain

中图分类号:  (Magnetic anisotropy)

  • 75.30.Gw
75.50.Bb (Fe and its alloys) 75.50.Ss (Magnetic recording materials)