Investigation of perpendicular magnetic anisotropy of CoFeB by x-ray magnetic circular dichroism

被引：26
|
作者：
Tsai, W. C. [1 ]
Liao, S. C. [1 ]
Hou, H. C. [1 ]
Yen, C. T. [2 ]
Wang, Y. H. [2 ]
Tsai, H. M. [3 ]
Chang, F. H. [3 ]
Lin, H. J. [3 ]
Lai, Chih-Huang [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan
[2] Ind Technol Res Inst, Elect & Optoelect Res Lab, Hsinchu 31040, Taiwan
[3] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 17期
关键词：
TUNNEL-JUNCTION; ORBITAL-MOMENT; FILMS; IRON;
D O I：
10.1063/1.4707380
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have studied the variation of perpendicular magnetic anisotropy (PMA) of CoFeB layers with the oxidation degree of the MgO buffer layers. After annealing at 330 degrees C, the out-of-plane anisotropy field (H-k) of 1.5-nm CoFeB could be optimized to 3.1 kOe. To investigate the orbital hybridization of the Fe-3d and O-2p, the orbital moments per hole (m(orb)/N-h) of Fe in annealed CoFeB layers were extracted by using x-ray magnetic circular dichroism. The dependence of m(orb)/N-h on the oxidation time of MgO coincided with that of H-k, which revealed that PMA of annealed CoFeB originated from the interfacial orbital hybridization. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4707380]
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Magnetic anisotropy in Ta/CoFeB/MgO investigated by x-ray magnetic circular dichroism and first-principles calculation
    Kanai, Shun
    Tsujikawa, Masahito
    Miura, Yoshio
    Shirai, Masafumi
    Matsukura, Fumihiro
    Ohno, Hideo
    APPLIED PHYSICS LETTERS, 2014, 105 (22)
  • [2] Perpendicular magnetic anisotropy in amorphous NdxCo1-x thin films studied by x-ray magnetic circular dichroism
    Cid, R.
    Alameda, J. M.
    Valvidares, S. M.
    Cezar, J. C.
    Bencok, P.
    Brookes, N. B.
    Diaz, J.
    PHYSICAL REVIEW B, 2017, 95 (22)
  • [3] X-Ray Magnetic Circular Dichroism
    Kim, Jae-Young
    JOURNAL OF THE KOREAN MAGNETICS SOCIETY, 2010, 20 (05): : 201 - 205
  • [4] X-ray magnetic circular dichroism
    Nature Reviews Methods Primers, 5 (1):
  • [5] X-ray magnetic circular dichroism
    C. A. F. Vaz
    G. van der Laan
    S. A. Cavill
    H. A. Dürr
    A. Fraile Rodríguez
    F. Kronast
    W. Kuch
    Ph. Sainctavit
    G. Schütz
    H. Wende
    E. Weschke
    F. Wilhelm
    Nature Reviews Methods Primers, 5 (1):
  • [6] X-ray magnetic circular dichroism study of the magnetic anisotropy on TbMnO3
    Cuartero, V.
    Lafuerza, S.
    Subias, G.
    Garcia, J.
    Schierle, E.
    Blasco, J.
    Herrero-Albillos, J.
    PHYSICAL REVIEW B, 2015, 91 (16)
  • [7] X-ray microscopy with X-ray Magnetic Circular Dichroism
    Fischer, P
    Schutz, G
    Schmahl, G
    Guttmann, P
    Raasch, D
    JOURNAL DE PHYSIQUE IV, 1997, 7 (C2): : 467 - 468
  • [8] Perpendicular magnetic anisotropy and the reorientation transition of the magnetization in CeH2/Fe multilayers probed by x-ray magnetic circular dichroism
    Arend, M
    Felsch, W
    Krill, G
    Delobbe, A
    Baudelet, F
    Dartyge, E
    Kappler, JP
    Finazzi, M
    San Miguel-Fuster, A
    Pizzini, S
    Fontaine, A
    PHYSICAL REVIEW B, 1999, 59 (05) : 3707 - 3721
  • [9] Magnetic anisotropy and exchange biasing in heterojunctions studied by transverse magnetic circular X-ray dichroism
    van der Laan, G
    Durr, HA
    PHYSICA B, 1998, 248 : 121 - 126
  • [10] Magnetic anisotropy and exchange biasing in heterojunctions studied by transverse magnetic circular X-ray dichroism
    van der Laan, G.
    Durr, H.A.
    Physica B: Condensed Matter, 1998, 248 : 121 - 126
12345