-
1.发明授权公开(公告)号：US06660357B1
公开(公告)日：2003-12-09
申请号：US09776061
申请日：2001-02-02
IPC分类号： G11B566
CPC分类号： G11B5/667 , G11B5/66 , Y10S428/90 , Y10T428/12465 , Y10T428/265
摘要： Magnetic recording media having a biased soft magnetic underlayer are disclosed. The soft magnetic underlayer includes at least two soft magnetic layers separated by a thin non-magnetic layer. Magnetostatic coupling between the soft magnetic layers causes the magnetizations in the layer to be anti-parallel. The biased soft magnetic underlayer is brought into a substantially single-domain state, thereby reducing or eliminating unwanted noise in the soft underlayer. In a preferred embodiment, the recording media includes a perpendicular magnetic recording disk.
摘要翻译： 公开了具有偏置软磁性底层的磁记录介质。 软磁性底层包括由薄的非磁性层隔开的至少两个软磁性层。 软磁层之间的静电耦合使得该层中的磁化反平行。 偏置的软磁性底层进入基本单畴状态，从而减少或消除软底层中的不必要的噪声。 在优选实施例中，记录介质包括垂直磁记录盘。
-
公开(公告)号：US06987637B2
公开(公告)日：2006-01-17
申请号：US09916105
申请日：2001-07-26
CPC分类号： G11B5/012 , G11B5/4886 , G11B5/5521 , G11B5/56 , G11B2005/0029
摘要： A perpendicular magnetic recording system is provided which eliminates unwanted side writing to adjacent recording tracks due to the skew angle effect. The system includes a perpendicular magnetic recording head with a write pole that is used to sequentially write to adjacent tracks of a magnetic recording disk. In one embodiment, the write pole is aligned at a compensation angle with respect to the recording tracks which remains greater than zero as the recording head travels in an arc across the disk. When the recording head moves radially inwardly or outwardly across the tracks of the disk, the compensation angle remains greater than zero. Any side writing by the write pole to adjacent tracks is eliminated as the write pole sequentially writes to the next adjacent track. By eliminating the skew angle effect, smaller spacings may be provided between adjacent tracks, thereby increasing data storage densities.
-
搜索结果
2 条记录 (耗时 0.01 秒)
