Perpendicular magnetic anisotropy in the CoFeB/Pt multilayers by Extraordinary Hall effect

被引：0
作者：
Liu, Na [1 ]
Wang, Hai [1 ]
Zhu, Tao [2 ]
机构：
[1] Capital Normal Univ, Beijing Key Lab Nanophoton & Nanostruct, Dept Phys, Beijing 100048, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China
来源：
FRONTIER OF NANOSCIENCE AND TECHNOLOGY | 2011年 / 694卷
关键词：
Multilayers; Perpendicular magnetic anisotropy; coercivity; Hall resistivity; MICROSTRUCTURE;
D O I：
10.4028/www.scientific.net/MSF.694.773
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The perpendicular magnetic anisotropy (PMA) in as-deposited [CoFeB/Pt](n) multilayers has been studied by using extraordinary Hall effect (EHE). A clear PMA has been observed in the ultrathin (similar to 0.5 nm) amorphous CoFeB layer sandwiched by Pt. Moreover, PMA in as-deposited [CoFeB/Pt](n) multilayers is strongly dependent on the thickness of CoFeB and Pt and the number of CoFeB/Pt bilayers. With the increasing thickness of CoFeB and the number of CoFeB/Pt bilayers, the hysteresis loops change from rectangle into bow-tie shaped.
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页码：773 / +
页数：2
相关论文
共 19 条
  • [1] Side-jump mechanism for the Hall effect of ferromagnets
    Berger, L.
    [J]. PHYSICAL REVIEW B-SOLID STATE, 1970, 2 (11): : 4559 - 4566
  • [2] Sizable room-temperature magnetoresistance in cobalt based magnetic tunnel junctions with out-of-plane anisotropy
    Carvello, Baptiste
    Ducruet, Clarisse
    Rodmacq, Bernard
    Auffret, Stephane
    Gautier, Eric
    Gaudin, Gilles
    Dieny, Bernard
    [J]. APPLIED PHYSICS LETTERS, 2008, 92 (10)
  • [3] Study of the low temperature ordering of L10-Fe-Pt in Fe/Pt multilayers
    Endo, Y
    Oikawa, K
    Miyazaki, T
    Kitakami, O
    Shimada, Y
    [J]. JOURNAL OF APPLIED PHYSICS, 2003, 94 (11) : 7222 - 7226
  • [4] Perpendicular Magnetic Anisotropy in CoFeB/Pd Bilayers
    Fowley, Ciaran
    Decorde, Nicolas
    Oguz, Kaan
    Rode, Karsten
    Kurt, Huseyin
    Coey, J. M. D.
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 2010, 46 (06) : 2116 - 2118
  • [5] Gambino R. J., 1976, IBM Technical Disclosure Bulletin, V18, P4214
  • [6] Asymmetric domain nucleation and unusual magnetization reversal in ultrathin Co films with perpendicular anisotropy
    Iunin, Y. L.
    Kabanov, Y. P.
    Nikitenko, V. I.
    Cheng, X. M.
    Clarke, D.
    Tretiakov, O. A.
    Tchernyshyov, O.
    Shapiro, A. J.
    Shull, R. D.
    Chien, C. L.
    [J]. PHYSICAL REVIEW LETTERS, 2007, 98 (11)
  • [7] Strong perpendicular magnetic anisotropy in thick CoFeB films sandwiched by Pd and MgO layers
    Jung, J. H.
    Lim, S. H.
    Lee, S. R.
    [J]. APPLIED PHYSICS LETTERS, 2010, 96 (04)
  • [8] Strong Perpendicular Magnetic Anisotropy in CoFeB/Pd Multilayers
    Jung, Jong Ho
    Jeong, Boram
    Lim, Sang Ho
    Lee, Seong-Rae
    [J]. APPLIED PHYSICS EXPRESS, 2010, 3 (02)
  • [9] Media for 10 Gb/in(2) hard disk storage: Issues and status
    Lambeth, DN
    Velu, EMT
    Bellesis, GH
    Lee, LL
    Laughlin, DE
    [J]. JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) : 4496 - 4501
  • [10] Reduction of the spin-torque critical current by partially canceling the free layer demagnetization field
    Liu, Luqiao
    Moriyama, Takahiro
    Ralph, D. C.
    Buhrman, R. A.
    [J]. APPLIED PHYSICS LETTERS, 2009, 94 (12)
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