Magnetic relaxation in thin film media as a function of orientation ratio

被引:16
作者
Akimoto, H [1 ]
Yoshida, Y [1 ]
Okuyama, C [1 ]
Okamoto, I [1 ]
Shinohara, M [1 ]
机构
[1] Fujitsu Ltd, File Memory Lab, Atsugi, Kanagawa 2430197, Japan
关键词
thermal relaxation; orientation ratio; thin film media; micromagnetic Monte Carlo simulation;
D O I
10.1016/S0304-8853(98)00435-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We investigated the thermal relaxation of isotropic and oriented media having the same k(u)V/kT via a method combining micromagnetic and Monte Carlo simulations and experiments. Through simulations and experiments, we ascertained that the thermal stability of remanent magnetization increases with increased circumferential orientation. We also confirmed via simulations that written dibit and continuous bits are thermally stabilized by circumferential orientation media. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:240 / 244
页数:5
相关论文
共 8 条
  • [1] MAGNETIC VISCOSITY IN RECORDING MEDIA
    CHARAP, SH
    [J]. JOURNAL OF APPLIED PHYSICS, 1988, 63 (06) : 2054 - 2057
  • [2] NiFe/CoFeB spin-valve heads for over 5 Gbit/in(2) density recording
    Kanai, H
    Kane, J
    Yamada, K
    Aoshima, K
    Kanamine, M
    Toda, J
    Mizoshita, Y
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (05) : 2872 - 2874
  • [3] SIMULATION OF MAGNETIC AFTEREFFECT IN PARTICULATE RECORDING MEDIA
    KANAI, Y
    CHARAP, SH
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (06) : 4972 - 4974
  • [4] MAGNETIC VISCOSITY IN HIGH-DENSITY RECORDING
    LU, PL
    CHARAP, SH
    [J]. JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) : 5768 - 5770
  • [5] ROADMAP FOR 10 GBIT/IN2 MEDIA - CHALLENGES
    MURDOCK, ES
    SIMMONS, RF
    DAVIDSON, R
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1992, 28 (05) : 3078 - 3083
  • [6] New type (1,7) RLL partial response over 5 Gbit/in(2) areal density
    Shimoda, K
    Sugawara, T
    Kasai, K
    Ohshima, T
    Mizoshita, Y
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (05) : 2812 - 2814
  • [7] Monte Carlo simulation of thermal fluctuation in magnetization of longitudinal and perpendicular magnetic recording media
    Uesaka, Y
    Takahashi, Y
    Nakatani, Y
    Hayashi, N
    Fukushima, H
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1997, 174 (1-2) : 203 - 218
  • [8] ULTRA HIGH-DENSITY MEDIA - GIGABIT AND BEYOND
    YOGI, T
    NGUYEN, TA
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1993, 29 (01) : 307 - 316