公开(公告)号：US20070128471A1

公开(公告)日：2007-06-07

申请号：US11602207

申请日：2006-11-21

申请人： Keiji Moroishi ,  Ang Chor Boon

发明人： Keiji Moroishi ,  Ang Chor Boon

IPC分类号： G11B5/66 ,  C23C14/00

CPC分类号： G11B5/7325 ,  G11B5/8404 ,  G11B5/851

摘要： In a magnetic disk having at least a glass substrate, a plurality of underlayers formed over the glass substrate, and a magnetic layer formed over the plurality of underlayers, at least one of the underlayers is an amorphous underlayer containing a VIa group element and carbon and, given that the remanent magnetization in a circumferential direction of the disk is Mrc and the remanent magnetization in a radial direction of the disk is Mrr, the magnetic disk has a magnetic anisotropy in which Mrc/Mrr being a ratio between Mrc and Mrr exceeds 1.

摘要翻译： 在至少具有玻璃基板的磁盘中，形成在玻璃基板上的多个底层，以及形成在所述多个底层上的磁性层，所述底层中的至少一个是含有VIa族元素和碳的无定形底层， 考虑到圆盘圆周方向上的残余磁化为Mrc，圆盘的径向的剩余磁化为Mrr，磁盘具有磁性各向异性，其中Mrc / Mrr与Mrc与Mrr之间的比值超过1 。