Strong perpendicular magnetic anisotropy in Co2FeAl0.5Si0.5 film sandwiched by MgO layers

被引：8
|
作者：
Wang Sheng [1 ]
Li Xiao-Qi [1 ]
Bai Li-Juan [1 ]
Xu Xiao-Guang [1 ]
Miao Jun [1 ]
Jiang Yong [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
来源：
CHINESE PHYSICS B | 2013年 / 22卷 / 05期
基金：
中国国家自然科学基金;
关键词：
half-metallic ferromagnets; MgO layers; perpendicular magnetic anisotropy;
D O I：
10.1088/1674-1056/22/5/057305
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Co2FeAl0.5Si0.5 (CFAS)-based multilayers sandwiched by MgO layers have been deposited and annealed at different temperatures. Perpendicular magnetic anisotropy (PMA) with the magnetic anisotropy energy density K-u approximate to 2.5 x 10(6) erg/cm(3) (1 erg = 10(-7) J) and the coercivity H-c = 363 Oe (1 Oe = 79.9775 A . m(-1)) has been achieved in the Si/SiO2/MgO (1.5 nm)/CFAS (2.5 nm)/MgO (0.8 nm)/Pt (5 nm) film annealed at 300 degrees C. The strong PMA is mainly due to the top MgO layer. The structure can be used as top magnetic electrodes in half-metallic perpendicular magnetic tunnel junctions.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Strong perpendicular magnetic anisotropy in Co2FeAl0.5Si0.5 film sandwiched by MgO layers
    王圣
    李晓其
    白丽娟
    徐晓光
    苗君
    姜勇
    Chinese Physics B, 2013, (05) : 492 - 495
  • [2] Perpendicular magnetic anisotropy in Co2FeAl0.5Si0.5/MgO bottom electrodes for magnetic tunnel junctions
    Li, X. Q.
    Wu, Y.
    Gao, S.
    Xu, X. G.
    Miao, J.
    Jiang, Y.
    THIN SOLID FILMS, 2013, 545 : 503 - 508
  • [3] Interfacial and Magnetic Properties of Pt/Co2FeAl0.5Si0.5/MgO Multilayers With Perpendicular Magnetic Anisotropy
    Yu, Haijie
    Wu, Yong
    Li, Lu
    Xu, Xiaoguang
    Miao, Jun
    Jiang, Yong
    IEEE TRANSACTIONS ON MAGNETICS, 2014, 50 (11)
  • [4] Perpendicular magnetic anisotropy in Ta/Pd/Co2FeAl0.5Si0.5/MgO/Ta structured films
    Fu, H. R.
    You, C. Y.
    Zhang, X.
    Tian, N.
    PHYSICA B-CONDENSED MATTER, 2015, 468 : 101 - 104
  • [5] Interfacial perpendicular magnetic anisotropy and magnetic properties of Pd/Co2FeAl0.5Si0.5/MgO structured films
    Wang, Ke
    Xu, Zhan
    Huang, Ya
    Chen, Ruofei
    MATERIALS & DESIGN, 2017, 114 : 557 - 562
  • [6] Effects of annealing and MgO thickness on perpendicular magnetic anisotropy in Pt/Co2FeAl0.5Si0.5/MgO/Pt multilayers
    Wu, Yong
    Li, Xiaoqi
    Xiong, Qiang
    Gao, Shan
    Xu, Xiaoguang
    Miao, Jun
    Jiang, Yong
    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2014, 211 (03): : 606 - 610
  • [7] The interface structure and magnetic and electronic properties of a Co2FeAl0.5Si0.5/MgO/Co2FeAl0.5Si0.5 magnetic tunneling junction
    Yu, H. L.
    Yang, G. W.
    JOURNAL OF APPLIED PHYSICS, 2011, 109 (08)
  • [8] The role of Pt underlayer on the magnetization dynamics of perpendicular magnetic anisotropy Pt/Co2FeAl0.5Si0.5/MgO
    Besbas, Jean
    Loong, Li Ming
    Wu, Yang
    Yang, Hyunsoo
    APPLIED PHYSICS LETTERS, 2016, 108 (23)
  • [9] Perpendicular magnetic anisotropy and thermal stability in Co2FeAl0.5Si0.5/Pt multilayers
    Wu, Y.
    Zhang, J.
    Wang, Z. C.
    Wang, J.
    Xu, X. G.
    Miao, J.
    Zhang, J. X.
    Jiang, Y.
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2014, 117 (02): : 773 - 779
  • [10] Perpendicular magnetic anisotropy and thermal stability in Co2FeAl0.5Si0.5/Pt multilayers
    Y. Wu
    J. Zhang
    Z. C. Wang
    J. Wang
    X. G. Xu
    J. Miao
    J. X. Zhang
    Y. Jiang
    Applied Physics A, 2014, 117 : 773 - 779
12345