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    HIGHLY ORIENTED MAGNETIC THIN FILMS, RECORDING MEDIA, TRANSDUCERS, DEVICES MADE THEREFROM AND METHODS OF MAKING
    1.
    发明公开
    HIGHLY ORIENTED MAGNETIC THIN FILMS, RECORDING MEDIA, TRANSDUCERS, DEVICES MADE THEREFROM AND METHODS OF MAKING 有权
    高取向薄膜磁膜，记录部件，与生产这些设备和方法转换器

    公开(公告)号：EP1031143A1

    公开(公告)日：2000-08-30

    申请号：EP98959396.7

    申请日：1998-11-09

    申请人： CARNEGIE MELLON UNIVERSITY

    发明人： LAMBETH, David, N. ,  LAUGHLIN, David, E. ,  GONG, Heng ,  YANG, Wei ,  ZOU, Jie

    IPC分类号： G11B5/64

    CPC分类号： G11B5/667 ,  G11B5/7325 ,  Y10T428/12611 ,  Y10T428/265

    摘要： The present invention provides for magnetic and magneto-optic recording media, transducers and data storage devices constructed therefrom that have highly oriented films having long range order in the crystal structure of the film. The recording medium includes a magnetic recording layer comprised of Co-based material, such as Co or one or more Co alloys having a (1010) crystal texture, a substrate, a first underlayer having an fcc structure and a (110) crystal texture disposed between the substrate and the magnetic recording layer. A second underlayer having a bcc structure and a (112) crystal texture is also disposed between the magnetic recording layer and the first underlayer. In particular, if a (110) Si single crystal substrate is non-oxidized certain metals having fcc structures, such as Ag, Cu, Al, and Au and fcc derivative structures, such L10 and L12 structures, can be epitaxially grown on the Si surface.

    MANGANESE CONTAINING LAYER FOR MAGNETIC RECORDING MEDIA
    3.
    发明公开
    MANGANESE CONTAINING LAYER FOR MAGNETIC RECORDING MEDIA 失效
    WITH A含锰层上进行磁记录介质

    公开(公告)号：EP0978121A1

    公开(公告)日：2000-02-09

    申请号：EP98918504.6

    申请日：1998-04-22

    申请人： CARNEGIE MELLON UNIVERSITY

    发明人： LAMBETH, David, N. ,  LEE, Li-Lien ,  LAUGHLIN, David, E.

    IPC分类号： G11B5/64

    CPC分类号： G11B5/64 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265

    摘要： The present invention provides for a magnetic recording media incorporating Mn-containing layers between a substrate and a magnetic layer to provide media having increased coercivity and lower noise. The Mn-containing layer can be incorporated in a rotating, translating or stationary recording media to operate in conjunction with magnetic transducing heads for recording and reading of magnetic data, as well as other applications. The magnetic recording medium of the invention preferably includes a Co or Co alloy film magnetic layer, and Mn-containing layer, preferably comprised of VMn, TiMn, MnZn, CrMnMo, CrMnW, CrMnV, and CrMnTi, and most preferably a CrMn alloy, disposed between the substrate and the magnetic layer to promote an epitaxial crystalline structure in the magnetic layer. The medium can further include seed layers, preferably polycrystalline MgO for longitudinal media, underlayers, and intermediate layers. Underlayers and intermediate layers are comprised of materials having either an A2 structure or a B2-ordered crystalline structure disposed between the seed layer and the magnetic layer. Materials having an A2 structure are preferably Cr or Cr alloys, such as CrV, CrMo, CrW and CrTi. Materials having a B2-ordered structure having a lattice constant that is substantially comparable to that of Cr, such as those preferably selected from the group consisting of NiAl, AlCo, FeAl, FeTi, CoFe, CoTi, CoHf, CoZr, NiTi, CuBe, CuZn, AlMn, AlRe, AgMg, and Al2FeMn2, and is most preferably FeAl or NiAl.