Granular nanostructures and magnetic properties of FePt-C/FePt-SiO2 films

被引：5
|
作者：
Zhang, Luran [1 ]
Liu, Liwang [1 ]
Hayasaka, Kouji [3 ,4 ]
Ishio, Shunji [1 ,2 ]
机构：
[1] Akita Univ, Venture Business Lab, Akita 010, Japan
[2] Akita Univ, Dept Mat Sci & Engn, Akita 010, Japan
[3] Minist Educ Culture Sports Sci & Technol MEXT, Nanotechnol Platform, Tokyo, Japan
[4] Tohoku Univ, Ctr Integrated Nanotechnol Support, Sendai, Miyagi 980, Japan
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 651卷
关键词：
Magnetic films and multilayers; Magnetic measurements; Thin films; THIN-FILMS; MEDIA;
D O I：
10.1016/j.jallcom.2015.08.106
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
FePt-C, FePt-SiO2 and FePt-C/FePt-SiO2 films with different segregants concentration on glass substrate with polycrystalline MgO underlayer have been successfully fabricated by magnetron sputtering system. It was found that the FePt-C films had larger coercivity(H-c), chemical order parameter(S) and smaller diameter of the local interaction zone(D-n) but wider magnetic coercive force distribution(Delta H-c/H-c) than that of the FePt-SiO2 films. By using FePt-C/FePt-SiO2 bilayer structure, the low D-n and Delta H-c/H-c were obtained. FePt-C30vol%(4 nm)/FePt-SiO(2)45vol%(4 nm) film with Hc higher than 29 kOe and columnar FePt grains of 10 nm in diameter and 13 nm in height were obtained, which would be very suitable for heat assisted magnetic recording media. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：389 / 392
页数：4
相关论文
共 50 条
  • [21] Optical and magneto-optical properties of magnetic nanocomposites FePt-SiO2
    Gan'shina, E
    Aimuta, K
    Granovsky, A
    Kochneva, M
    Sherbak, P
    Vashuk, M
    Nishimura, K
    Inoue, M
    JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) : 6882 - 6884
  • [22] Origin of enhanced anisotropy in FePt-C granular films revealed by XMCD
    Streubel, Robert
    N'Diaye, Alpha T.
    Srinivasan, Kumar
    Ajan, Antony
    Fischer, Peter
    APPLIED PHYSICS LETTERS, 2019, 114 (16)
  • [23] Interface mediated control of microstructure and magnetic properties of FePt-C thin films
    Pandey, K. K. M.
    Gaur, N.
    Bhatia, C. S.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2011, 323 (21) : 2658 - 2662
  • [24] Magnetic Properties and Microstructure of FePt(MoC, C) Granular Films
    Tsai, J. L.
    Tseng, Y. T.
    Li, C. R.
    Fu, S. C.
    Hu, K. C.
    Tzeng, J. L.
    IEEE TRANSACTIONS ON MAGNETICS, 2015, 51 (11)
  • [25] Effects of B4C Addition on the Microstructure and Magnetic Properties of FePt-C Granular Thin Films for Perpendicular Magnetic Recording
    Yu, Dedong
    Zhou, Xiaoqian
    Zhang, Tongbo
    Zhong, Hui
    Fu, Yanqing
    Cui, Weibin
    Wang, Qiang
    IEEE TRANSACTIONS ON MAGNETICS, 2017, 53 (08)
  • [26] Magnetic characteristics and nanostructures of FePt granular films with GeO2 segregant
    Ono, Takuya
    Moriya, Tomohiro
    Hatayama, Masatoshi
    Tsumura, Kaoru
    Kikuchi, Nobuaki
    Okamoto, Satoshi
    Kitakami, Osamu
    Shimatsu, Takehito
    APPLIED PHYSICS LETTERS, 2017, 110 (02)
  • [27] Magnetic properties and nanostructures of FePtCu:C thin films with FePt underlayers
    Jin Ling-Fang
    Yan Ming-Lang
    CHINESE PHYSICS LETTERS, 2007, 24 (09) : 2628 - 2630
  • [28] Magnetic properties and microstructure of FePt(MoC, C) granular films.
    Tsai, J.
    Fu, S.
    Tseng, Y.
    Li, C.
    2015 IEEE MAGNETICS CONFERENCE (INTERMAG), 2015,
  • [29] Magnetic properties of FePt and FePt-Al2O3 granular films by post annealing
    Matsumoto, M
    Morisako, A
    Katayama, N
    JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) : 7169 - 7171
  • [30] Magnetic viscosity study in FePt/C granular films
    Huang, Y
    Butler, W
    Zhang, Y
    Hadjipanayis, GC
    Weller, D
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 : 1563 - 1564
12345