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    • 83. 发明申请
    • VERTICAL MAGNETIC RECORDING MEDIUM AND METHOD FOR EVALUATING THE SAME
    • 垂直磁记录介质及其评估方法
    • WO01069595A1
    • 2001-09-20
    • PCT/JP2001/002100
    • 2001-03-16
    • G01B7/00G11B5/64G11B5/65G11B5/667G11B5/73G11B5/738G11B5/84G11B5/855
    • G11B5/855
    • A vertical magnetic recording medium and a method for evaluating the same by which the thickness of the microcrystalline texture part occupying the ferromagnetic layer in the recording layer of the medium can be grasped quantitatively along with the distribution thereof in the thickness direction and the crystal magnetic anisotropy constant Ku of magnetic crystal grains in a columnar texture part can be determined simultaneously. The vertical magnetic recording medium is characterized in that the ferromagnetic layer (12) where the columnar texture part (14) is located on the microcrystalline texture part (13) is the recording layer and the microscrystalline texture part comprises microcrystals having c-axes oriented at random three-dimensionally. The method for evaluating the vertical magnetic recording medium is characterized in that the microcrystalline texture part (13) comprises microcrystals having c-axes oriented in random three-dimensionally and the crystal magnetic anisotropy constant Ku of magnetic crystal grain at the columnar texture part and/or the thickness d at the microcrystalline texture part (13) can be determined from the vertical magnetic anisotropy constant Ku of the ferromagnetic layer (12) and the thickness d of the ferromagnetic layer.
    • 一种垂直磁记录介质及其评估方法,其可以通过其在介质的记录层中占据铁磁层的微晶结构部分的厚度及其厚度方向上的分布以及晶体磁各向异性来定量地掌握 可以同时确定柱状结构部分中的磁性晶粒的恒定Ku 。 垂直磁记录介质的特征在于,柱状结构部分(14)位于微晶结构部分(13)上的铁磁层(12)是记录层,微晶结构部分包括具有c轴取向的微晶体 三维随机。 用于评估垂直磁记录介质的方法的特征在于,微晶纹理部分(13)包括具有三维取向的c轴的微晶和在柱状纹理下的磁晶粒的晶体磁各向异性常数Ku < 可以从铁磁性层(12)的垂直磁各向异性常数Ku&gt;和强磁性层的厚度d 来确定微晶结构部分(13)的部分和/或厚度d 1。