REDUCTION OF MEDIA NOISE IN THIN-FILM METAL MEDIA BY LAMINATION

被引:46
作者
LAMBERT, SE
HOWARD, JK
SANDERS, IL
机构
[1] IBM Research Division, Almaden Research Center, San Jose, CA, 95120–6099
关键词
D O I
10.1109/20.104845
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The properties of laminated films of longitudinal Co-alloy media have been - investigated. Significant reductions in the media noise are observed compared with single layer films of the same total thickness, while the signal amplitude is unaffected. There are at least two reasons for this improved performance. Thin media layers exhibit inherently better signal-to-media-noise ratios which are retained when several thin films are separated by non-magnetic interlayers. A laminated media structure also offers a media noise advantage since noise sources in the individual magnetic layers can be independent from one another. Our analysis shows that both mechanisms are required to explain our results. © 1990 IEEE
引用
收藏
页码:2706 / 2708
页数:3
相关论文
共 9 条
  • [1] MEASUREMENT OF THE INTRINSIC SIGNAL-TO-NOISE RATIO FOR HIGH-PERFORMANCE RIGID RECORDING MEDIA
    BELK, NR
    GEORGE, PK
    MOWRY, GS
    [J]. JOURNAL OF APPLIED PHYSICS, 1986, 59 (02) : 557 - 563
  • [2] HATA H, BB05 PAP
  • [3] MAGNETIC-PROPERTIES AND READ-WRITE CHARACTERISTICS OF MULTILAYER FILMS ON A GLASS SUBSTRATE
    KATAYAMA, S
    TSUNO, T
    ENJOJI, K
    ISHII, N
    SONO, K
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1988, 24 (06) : 2982 - 2984
  • [4] MALLINSON JC, 1987, MAGNETIC RECORDING, V1, P345
  • [5] INFLUENCE OF COERCIVITY SQUARENESS ON MEDIA NOISE IN THIN-FILM RECORDING MEDIA
    SANDERS, IL
    HOWARD, JK
    LAMBERT, SE
    YOGI, T
    [J]. JOURNAL OF APPLIED PHYSICS, 1989, 65 (03) : 1234 - 1237
  • [6] MAGNETIC AND RECORDING CHARACTERISTICS OF VERY THIN METAL-FILM MEDIA
    SANDERS, IL
    YOGI, T
    HOWARD, JK
    LAMBERT, SE
    GORMAN, GL
    HWANG, C
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1989, 25 (05) : 3869 - 3871
  • [7] COMPARISON OF CALCULATED AND ACTUAL DENSITY RESPONSES OF A MAGNETORESISTIVE HEAD
    SCHWARZ, TA
    DECKER, SK
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1979, 15 (06) : 1622 - 1624
  • [8] YOGI T, 1990, INTERMAG 1990
  • [9] MICROMAGNETIC STUDIES OF THIN METALLIC-FILMS
    ZHU, JG
    BERTRAM, HN
    [J]. JOURNAL OF APPLIED PHYSICS, 1988, 63 (08) : 3248 - 3253