中国物理B ›› 2013, Vol. 22 ›› Issue (6): 67504-067504.doi: 10.1088/1674-1056/22/6/067504

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

Tunable interface anisotropy in Pt/Co1-xFex/Pt multilayer

陈勇勇a, 时钟a b, 周仕明a b, 芮文彬c, 杜军c   

  1. a Surface Physics State Laboratory and Department of Physics, Fudan University, Shanghai 200433, China;
    b School of Physics Science and Engineering, Tongji University, Shanghai 200092, China;
    c Department of Physics, Nanjing University, Nanjing 210093, China
  • 收稿日期:2012-12-07 修回日期:2013-01-16 出版日期:2013-05-01 发布日期:2013-05-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11074112, 10974032, and 51201114), the National Basic Research Program of China (Grant Nos. 2009CB929201 and 2010CB923401), and the Key Project of the Chinese Ministry of Education (Grant No. 210074).

Tunable interface anisotropy in Pt/Co1-xFex/Pt multilayer

Chen Yong-Yong (陈勇勇)a, Shi Zhong (时钟)a b, Zhou Shi-Ming (周仕明)a b, Rui Wen-Bin (芮文彬)c, Du Jun (杜军)c   

  1. a Surface Physics State Laboratory and Department of Physics, Fudan University, Shanghai 200433, China;
    b School of Physics Science and Engineering, Tongji University, Shanghai 200092, China;
    c Department of Physics, Nanjing University, Nanjing 210093, China
  • Received:2012-12-07 Revised:2013-01-16 Online:2013-05-01 Published:2013-05-01
  • Contact: Shi Zhong E-mail:shizhong@tongji.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11074112, 10974032, and 51201114), the National Basic Research Program of China (Grant Nos. 2009CB929201 and 2010CB923401), and the Key Project of the Chinese Ministry of Education (Grant No. 210074).

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摘要： Interfacial magnetic anisotropy in Pt/Co1-xFex/Pt multilayer is tuned by doping iron atoms into cobalt layer. The perpendicular magnetic anisotropy and out-of-plane coercivity are found to decrease with x increasing. For a specific x, the out-of-plane coercivity acquires a maximal value as a function of the CoFe layer thickness. At low temperature, the coercivity is enhanced. Small coercivity but reasonably large perpendicular magnetic anisotropy can be obtained by controlling x and CoFe layer thickness.

关键词: Pt/CoFe/Pt multilayers, perpendicular magnetic anisotropy, interfacial magnetic anisotropy

Abstract: Interfacial magnetic anisotropy in Pt/Co1-xFex/Pt multilayer is tuned by doping iron atoms into cobalt layer. The perpendicular magnetic anisotropy and out-of-plane coercivity are found to decrease with x increasing. For a specific x, the out-of-plane coercivity acquires a maximal value as a function of the CoFe layer thickness. At low temperature, the coercivity is enhanced. Small coercivity but reasonably large perpendicular magnetic anisotropy can be obtained by controlling x and CoFe layer thickness.

Key words: Pt/CoFe/Pt multilayers, perpendicular magnetic anisotropy, interfacial magnetic anisotropy

中图分类号:  (Magnetic properties of thin films, surfaces, and interfaces)

  • 75.70.-i
75.30.Gw (Magnetic anisotropy) 75.70.Cn (Magnetic properties of interfaces (multilayers, superlattices, heterostructures))