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公开(公告)号：EP1542209B1
公开(公告)日：2007-10-10
申请号：EP04021484.3
申请日：2004-11-03
IPC分类号： G11B5/855
CPC分类号： G11C11/5607 , G11B5/66 , G11B5/746 , G11B5/855 , G11C11/161 , G11C11/1675
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公开(公告)号：EP1542209A1
公开(公告)日：2005-06-15
申请号：EP04021484.3
申请日：2004-11-03
IPC分类号： G11B5/855
CPC分类号： G11C11/5607 , G11B5/66 , G11B5/746 , G11B5/855 , G11C11/161 , G11C11/1675
摘要： A patterned perpendicular magnetic recording medium has magnetic islands that contain stacks of individual magnetic cells to provide multilevel recording. Each cell in an island is formed of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This permits multiple magnetic levels or states to be recorded in each magnetic island.
摘要翻译： 图案化的垂直磁记录介质具有磁岛，所述磁岛包含单个磁单元的堆叠以提供多级记录。 岛中的每个单元由一种材料或一组材料形成，以提供具有垂直磁各向异性的单元并且是单个磁畴。 每个单元通过非磁性间隔层与其岛内的其他单元磁性分离。 因此，每个单元可以在两个方向中的一个方向（进入或离开构成单元的层的平面）具有磁化（磁矩），并且该磁化独立于其岛内的其他单元的磁化。 这允许在每个磁性岛中记录多个磁性水平或状态。
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公开(公告)号：EP1538605A2
公开(公告)日：2005-06-08
申请号：EP04021486.8
申请日：2004-09-09
CPC分类号： G11B5/66 , B82Y10/00 , G11B5/743 , G11B5/855 , G11B2005/0021
摘要： A magnetic recording system, such as a magnetic recording disk drive, uses a patterned perpendicular magnetic recording medium where each magnetic block or island contains a stack of individual magnetic cells to provide multilevel recording. Each cell in an island is fonned of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This pennits multiple magnetic levels or states to be recorded in each magnetic island.
摘要翻译： 诸如磁记录盘驱动器的磁记录系统使用图案化的垂直磁记录介质，其中每个磁块或岛包含单个磁性单元的堆叠以提供多级记录。 岛中的每个细胞都是由材料或材料组成的，以使细胞具有垂直的磁各向异性，并且是单个磁畴。 每个单元通过非磁性间隔层与其岛中的其它单元磁耦合。 因此，每个单元可以在两个方向之一（进入或离开构成单元的层的平面）中具有磁化（磁矩），并且该磁化独立于其岛中的其它单元的磁化。 这将描述要记录在每个磁岛中的多个磁级或状态。
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4.发明公开Method for recording on a magnetic recording medium 审中-公开维尔法赫恩·奥尔菲齐恩（Aufzeichnung auf einem magnetischen Aufzeichnungsmedium）
公开(公告)号：EP1538604A2
公开(公告)日：2005-06-08
申请号：EP04021485.0
申请日：2004-09-09
摘要： A method for magnetic recording uses a fixed write current with thermal assistance to record on a patterned perpendicular magnetic recording medium. The patterned medium has magnetic blocks or islands, each of which contains a stack of individual magnetic cells to provide multilevel recording. Each cell in an island is formed of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This permits multiple magnetic levels or states to be recorded in each magnetic island.
摘要翻译： 用于磁记录的方法使用具有热辅助的固定写入电流来记录在图案化的垂直磁记录介质上。 图案化介质具有磁性块或岛，每个磁性块或岛包含单个磁性单元的堆叠以提供多级记录。 岛中的每个单元由材料或材料组成，以为电池提供垂直的磁各向异性并且是单个磁畴。 每个单元通过非磁性间隔层与其岛中的其它单元磁耦合。 因此，每个单元可以在两个方向之一（进入或离开构成单元的层的平面）中具有磁化（磁矩），并且该磁化独立于其岛中的其它单元的磁化。 这允许在每个磁岛中记录多个磁级或状态。
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公开(公告)号：EP1538604A3
公开(公告)日：2006-02-01
申请号：EP04021485.0
申请日：2004-09-09
摘要： A method for magnetic recording uses a fixed write current with thermal assistance to record on a patterned perpendicular magnetic recording medium. The patterned medium has magnetic blocks or islands, each of which contains a stack of individual magnetic cells to provide multilevel recording. Each cell in an island is formed of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This permits multiple magnetic levels or states to be recorded in each magnetic island.
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公开(公告)号：EP1538605A3
公开(公告)日：2006-02-01
申请号：EP04021486.8
申请日：2004-09-09
CPC分类号： G11B5/66 , B82Y10/00 , G11B5/743 , G11B5/855 , G11B2005/0021
摘要： A magnetic recording system, such as a magnetic recording disk drive, uses a patterned perpendicular magnetic recording medium where each magnetic block or island contains a stack of individual magnetic cells to provide multilevel recording. Each cell in an island is fonned of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This pennits multiple magnetic levels or states to be recorded in each magnetic island.
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