Structure and Magnetic Properties of Graded (001)-Oriented FePt Films Prepared by Magnetron Sputtering and Rapid Thermal Annealing

被引：3
作者：
Yang, Weiwei [1 ,2 ]
Yu, Yongsheng [1 ,2 ]
Feng, Ming [1 ]
Li, Ji [1 ]
Li, Haibo [1 ]
机构：
[1] Jilin Normal Univ, Key Lab Funct Mat Phys & Chem, Minist Educ, Changchun 130103, Jilin, Peoples R China
[2] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Heilongjiang, Peoples R China
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2018年 / 31卷 / 10期
基金：
中国国家自然科学基金;
关键词：
FePt; Thin film; Coercivity; Texture; MEDIA;
D O I：
10.1007/s10948-018-4595-x
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
L1(0)-FePt/[Fe/Pt](27) multilayer films were prepared on (100)-oriented single-crystal MgO substrates. Structural analysis indicates epitaxial growth of the L1(0)-FePt films during high-temperature deposition. The room-temperature-deposited [Fe/Pt](27) multilayer exhibits the fcc-FePt structure grown epitaxially on the L1(0)-FePt base layer. The degree of chemical order and thereby the anisotropy of the top layer has been controlled by varying the temperature of a post-deposition annealing process. Compared with the as-deposited films, coercivities of the films annealed below 400 degrees C are substantially decreased by introducing the formation of a graded anisotropy in the partially ordered top layer. Coercivities decrease for annealing temperatures that are greater than 400 degrees C due to improved ordering of the top layer.
引用
收藏
页码：3251 / 3254
页数：4
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  • [1] Magnetic properties of graded A1/L10 films obtained by heat treatment of FePt/CoPt multilayers
    Alexandrakis, V.
    Niarchos, D.
    Mergia, K.
    Lee, Jehyun
    Fidler, J.
    Panagiotopoulos, I.
    [J]. JOURNAL OF APPLIED PHYSICS, 2010, 107 (01)
  • [2] Strong coercivity reduction in perpendicular FePt/Fe bilayers due to hard/soft coupling
    Casoli, F.
    Albertini, F.
    Nasi, L.
    Fabbrici, S.
    Cabassi, R.
    Bolzoni, F.
    Bocchi, C.
    [J]. APPLIED PHYSICS LETTERS, 2008, 92 (14)
  • [3] FePt-C graded media for ultra-high density magnetic recording
    Chen, J. S.
    Huang, L. S.
    Hu, J. F.
    Ju, G.
    Chow, G. M.
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2010, 43 (18)
  • [4] (001) FePt graded media with PtMn underlayers
    Chiang, Chao-Chien
    Tsai, Wu-Chang
    Wang, Liang-Wei
    Hou, Hao-Cheng
    Liao, Jung-Wei
    Lin, Hong-Ji
    Chang, Fan-Hsiu
    Kirby, Brian J.
    Lai, Chih-Huang
    [J]. APPLIED PHYSICS LETTERS, 2011, 99 (21)
  • [5] Experimental realization of graded L10-FePt/Fe composite media with perpendicular magnetization
    Goll, D.
    Breitling, A.
    Gu, L.
    van Aken, P. A.
    Sigle, W.
    [J]. JOURNAL OF APPLIED PHYSICS, 2008, 104 (08)
  • [6] Influence of Ag on the microstructure and magnetic properties of perpendicular exchange coupled composite L10-[FePt-Ag]/[Co/Ni]N films
    Guo, H. H.
    Chu, H. G.
    Ma, B.
    Zhang, Z. Z.
    Jin, Q. Y.
    Wang, H.
    Wang, J. P.
    [J]. APPLIED PHYSICS LETTERS, 2013, 102 (25)
  • [7] FePt L10/A1 graded media with a rough interphase boundary
    Lee, Jehyun
    Alexandrakis, Vasilis
    Fuger, Markus
    Dymerska, Barbara
    Suess, Dieter
    Niarchos, Dimitris
    Fidler, Josef
    [J]. APPLIED PHYSICS LETTERS, 2011, 98 (22)
  • [8] Reducing the writing field of L10-FePt by graded order parameter
    Lu, Zhihong
    Guo, Junbo
    Gan, Zhanghua
    Liu, Yong
    Xiong, Rui
    Mankey, G. L.
    Butler, W. H.
    [J]. JOURNAL OF APPLIED PHYSICS, 2013, 113 (07)
  • [9] Perpendicular FePt-based exchange-coupled composite media
    Makarov, D.
    Lee, J.
    Brombacher, C.
    Schubert, C.
    Fuger, M.
    Suess, D.
    Fidler, J.
    Albrecht, M.
    [J]. APPLIED PHYSICS LETTERS, 2010, 96 (06)
  • [10] L10 CoPt-Ta2O5 exchange coupled multilayer media for magnetic recording
    Pandey, K. K. M.
    Chen, J. S.
    Chow, G. M.
    Hu, J. F.
    [J]. APPLIED PHYSICS LETTERS, 2009, 94 (23)
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