公开(公告)号：US06906879B1

公开(公告)日：2005-06-14

申请号：US10727703

申请日：2003-12-03

申请人： Manfred Albrecht ,  Olav Hellwig ,  Guohan Hu ,  Bruce David Terris

发明人： Manfred Albrecht ,  Olav Hellwig ,  Guohan Hu ,  Bruce David Terris

IPC分类号： G11B5/64 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/09 ,  G11B5/127 ,  G11B5/31 ,  G11B5/65 ,  G11B5/66 ,  G11B5/667 ,  G11B5/673 ,  G11B5/738 ,  G11B5/82 ,  G11B5/855

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 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： 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。 岛中的每个单元由材料或材料组成，以向单元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，每个电池可以在两个方向之一（进入或离开构成电池的层的平面）中具有磁化（磁矩），并且该磁化独立于其岛中的其他电池的磁化。这允许 要记录在每个磁岛中的多个磁级或状态。

公开(公告)号：US20050122612A1

公开(公告)日：2005-06-09

申请号：US10727703

申请日：2003-12-03

申请人： Manfred Albrecht ,  Olav Hellwig ,  Guohan Hu ,  Bruce Terris

发明人： Manfred Albrecht ,  Olav Hellwig ,  Guohan Hu ,  Bruce Terris

IPC分类号： G11B5/64 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/09 ,  G11B5/127 ,  G11B5/31 ,  G11B5/65 ,  G11B5/66 ,  G11B5/667 ,  G11B5/673 ,  G11B5/738 ,  G11B5/82 ,  G11B5/855

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 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： 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。 岛中的每个单元由材料或材料组成，以向单元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（组成单元的层的平面内或外）中的一个方向上具有磁化（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。

公开(公告)号：US20050122609A1

公开(公告)日：2005-06-09

申请号：US10727826

申请日：2003-12-03

申请人： Manfred Albrecht ,  Olav Hellwig ,  Guohan Hu ,  Bruce Terris

发明人： Manfred Albrecht ,  Olav Hellwig ,  Guohan Hu ,  Bruce Terris

IPC分类号： G11B5/65 ,  G11B5/64 ,  G11B5/66 ,  G11B5/73 ,  G11B5/738 ,  G11B5/855 ,  G11B5/02 ,  G11B5/09 ,  G11B5/82

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，其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，以向单元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（组成单元的层的平面内或外）中的一个方向上具有磁化（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。