Effects of C layer on the microstructure and magnetic properties of FePt recording media films

被引:1
作者
Zhen, CM [1 ]
Zhai, XX [1 ]
Ma, L [1 ]
Li, ML [1 ]
Nie, XF [1 ]
机构
[1] Hebei Normal Univ, Inst Phys, Shandong 050016, Peoples R China
来源
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2006年 / 129卷 / 1-3期
基金
中国国家自然科学基金;
关键词
magnetron sputtering system; mutilayer films; magnetic recording material; hysteresis loops;
D O I
10.1016/j.mseb.2005.07.020
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
FePt/C mutilayer films were fabricated by magnetron sputtering system, then postannealed in vacuum. X-ray diffraction measurements show that the as-deposited films were disordered and the ordered L-10 structure was obtained by annealing the film at 600 degrees C with the c/a ratio 0.968. Magnetic investigation indicated that [FePt (2.5 nm)/C (2.0 nm)](10) film has the optimal magnetic properties with coercivity of 3245.1 Oe. By annealing the [FePt (2.5 nm)/C (2.0 nm)](10) film at 600 degrees C, magnetic particles with the size of about 10 nm dispersed uniformly in nonmagnetic C matrix was observed by an atomic force microscopy. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:261 / 264
页数:4
相关论文
共 11 条
  • [1] Ordering and orientation of CoPt/SiO2 granular films with additive Ag
    Chen, C
    Kitakami, O
    Okamoto, S
    Shimada, Y
    [J]. APPLIED PHYSICS LETTERS, 2000, 76 (22) : 3218 - 3220
  • [2] FULERTON EE, 1997, J APPL PHYS, V81, P5937
  • [3] HOVE JM, 1997, INTERFACES MAT, P56
  • [4] Low-temperature ordering of L10-CoPt thin films promoted by Sn, Pb, Sb, and Bi additives
    Kitakami, O
    Shimada, Y
    Oikawa, K
    Daimon, H
    Fukamichi, K
    [J]. APPLIED PHYSICS LETTERS, 2001, 78 (08) : 1104 - 1106
  • [5] 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
  • [6] FePt:SiO2 granular thin film for high density magnetic recording
    Luo, CP
    Liou, SH
    Sellmyer, DJ
    [J]. JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) : 6941 - 6943
  • [7] Perpendicular magnetic anisotropy and magnetic domain structure in sputtered epitaxial FePt (001) L10 films
    Thiele, JU
    Folks, L
    Toney, MF
    Weller, DK
    [J]. JOURNAL OF APPLIED PHYSICS, 1998, 84 (10) : 5686 - 5692
  • [8] Thermal effect limits in ultrahigh-density magnetic recording
    Weller, D
    Moser, A
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (06) : 4423 - 4439
  • [9] FePt-Ag nanocomposite film with perpendicular magnetic anisotropy
    Yang, T
    Ahmad, E
    Suzuki, T
    [J]. JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) : 6860 - 6862
  • [10] Formation of FePt nanoparticles in annealed FePt/C multilayers
    Zhang, Y
    Wan, J
    Bonder, MJ
    Hadjipanayis, GC
    Weller, D
    [J]. JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) : 7175 - 7177