High coercive L10 FePt-C (001) nanocomopsite films with small grain size for perpendicular recording media

被引：0
|
作者：
Chen, J.S. [1 ,2 ]
Hu, J.F. [2 ]
Lim, B.C. [1 ,2 ]
Lim, Y.K. [2 ]
Liu, B. [2 ]
Chow, G.M. [1 ]
Ju, G. [3 ]
机构：
[1] Department of Materials Science and Engineering, National University of Singapore, Singapore 117576, Singapore
[2] Data Storage Institute, DSI Building, 5 Engineering Drive 1, Singapore 117608, Singapore
[3] Seagate Technology, Pittsburgh, PA 15222-4215, United States
来源：
Journal of Applied Physics | 2008年 / 103卷 / 07期
关键词：
FePt-C films with various C concentrations were deposited on MgOCrRu /glass substrate by cosputtering FePt and C at 350 °C. The evolution of magnetic properties and microstructure of FePt-C films with the C concentration were investigated. All FePt films showed (001) preferred orientation regardless of C concentrations. With C doping; a two-layer structure of FePt-C films was formed. The FePt-C underlying layer epitaxially grown on MgO intermediate layer were L 10 FePt grains; while the FePt overlayer consisted of fcc FePt phase and L 10 FePt phase. The out-of-plane coercivity measured at room temperature increased from 10.2 to 19 kOe when C concentrations increased from 0% to 15%. Further increasing the C contents to 20% and 25% caused the decrease of coercivity to 17.2 and 14.8 kOe; respectively. © 2008 American Institute of Physics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Conference article (CA)
引用
收藏
相关论文
共 50 条
  • [21] Influence of Intermediate Layer on Magnetic Properties of L10 Ordered FePt Perpendicular Recording Media
    Li, Xu
    Li, Zhenghua
    Liu, Xi
    Li, Yanbo
    Bai, Jianmin
    Wei, Fulin
    Wei, Dan
    IEEE TRANSACTIONS ON MAGNETICS, 2010, 46 (06) : 2024 - 2027
  • [22] Reduction of grain size and ordering temperature in L10 FePt thin films
    Sun, AC
    Chen, SC
    Kuo, PC
    Chou, CY
    Fang, YH
    Hsu, JH
    Huang, HL
    Chang, HW
    IEEE TRANSACTIONS ON MAGNETICS, 2005, 41 (10) : 3772 - 3774
  • [23] Granular L10 FePt-X (X=C, TiO2, Ta2O5) (001) nanocomposite films with small grain size for high density magnetic recording
    Chen, J. S.
    Lim, B. C.
    Ding, Y. F.
    Hu, J. F.
    Chow, G. M.
    Ju, G.
    JOURNAL OF APPLIED PHYSICS, 2009, 105 (07)
  • [24] Nanogranular L10 FePt-C-Ta2O5 Composite Media for Perpendicular Recording Applications
    Cher, K. M.
    Lim, B. C.
    Hu, J. F.
    Lwin, P. W.
    Zhou, T. J.
    Chen, J. S.
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2011, 11 (03) : 2588 - 2592
  • [25] MgO-C interlayer for grain size control in FePt-C media for heat assisted magnetic recording
    Varaprasad, B. S. D. Ch. S.
    Zhou, Bing
    Mo, Tong
    Laughlin, David E.
    Zhu, Jian-Gang
    AIP ADVANCES, 2017, 7 (05):
  • [26] Well-isolated L10 FePt-SiNx-C nanocomposite films with large coercivity and small grain size
    Dong, K. F.
    Li, H. H.
    Peng, Y. G.
    Ju, G.
    Chow, G. M.
    Chen, J. S.
    JOURNAL OF APPLIED PHYSICS, 2012, 111 (07)
  • [27] Thickness dependent perpendicular magnetic domain patterns in sputtered epitaxial FePt(001) L10 films
    Thiele, JU
    Folks, L
    Toney, NF
    Weller, DK
    HIGH-DENSITY MAGNETIC RECORDING AND INTEGRATED MAGNETO-OPTICS: MATERIALS AND DEVICES, 1998, 517 : 319 - 324
  • [28] Perpendicular magnetic anisotropy and magnetic domain structure in sputtered epitaxial FePt (001) L10 films
    Thiele, JU
    Folks, L
    Toney, MF
    Weller, DK
    JOURNAL OF APPLIED PHYSICS, 1998, 84 (10) : 5686 - 5692
  • [29] Nanocomposite L10 FePt-SiNx and FePt-SiNx-C films with large coercivity and small grain size on a TiN intermediate layer
    Dong, K. F.
    Li, H. H.
    Peng, Y. G.
    Ju, G.
    Chow, G. M.
    Chen, J. S.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (17) : 2637 - 2644
  • [30] Grain isolated L10 FePt-Ta2O5 nanocomposite films with large coercivity for perpendicular recording applications
    Lim, B. C.
    Chen, J. S.
    Hu, J. F.
    Lwin, P. W.
    Ding, Y. F.
    Cher, K. M.
    Liu, B.
    JOURNAL OF APPLIED PHYSICS, 2009, 105 (07)
12345