公开(公告)号：US07419730B2

公开(公告)日：2008-09-02

申请号：US10931642

申请日：2004-08-31

申请人： Xiaoping Bian ,  Mary Frances Doerner ,  Tetsuya Kanbe ,  Mark Mercado ,  Mohammad Mirzamaani ,  Adam Polcyn ,  Kai Tang

发明人： Xiaoping Bian ,  Mary Frances Doerner ,  Tetsuya Kanbe ,  Mark Mercado ,  Mohammad Mirzamaani ,  Adam Polcyn ,  Kai Tang

IPC分类号： G11B5/66

CPC分类号： G11B5/732 ,  G11B5/656 ,  G11B5/66 ,  G11B5/7325

摘要： An antiferromagnetically coupled (AFC) magnetic recording medium with an AFC master layer comprising at least two magnetic layers with the top magnetic layer including copper is described. The slave layer is separated from the master layer structure by a nonmagnetic spacer layer selected to antiferromagnetically couple the layers. The master layer structure according to the invention includes a bottom and top layer of distinct ferromagnetic materials. Preferably, the top layer of the master layer is a cobalt alloy including from 1 to 5 at. % copper with an example being CoPt13Cr20B8Cu2. The AFC magnetic layer structure can be used with a variety of substrates including circumferentially textured glass and NiP/AlMg.

摘要翻译： 描述了具有包括至少两个具有顶部磁性层包括铜的磁性层的AFC主层的反铁磁耦合（AFC）磁记录介质。 通过选择用于反铁磁耦合层的非磁性间隔层将从属层与主层结构分离。 根据本发明的主层结构包括不同铁磁材料的底层和顶层。 优选地，主层的顶层是包括1至5个的钴合金。 ％铜，例如CoPt 13 C 20 20 B 2 Cu 2。 AFC磁性层结构可以与各种基材一起使用，包括圆周纹理玻璃和NiP / AlMg。

公开(公告)号：US20060046102A1

公开(公告)日：2006-03-02

申请号：US10931642

申请日：2004-08-31

申请人： Xiaoping Bian ,  Mary Doerner ,  Tetsuya Kanbe ,  Mark Mercado ,  Mohammad Mirzamaani ,  Adam Polcyn ,  Kai Tang

发明人： Xiaoping Bian ,  Mary Doerner ,  Tetsuya Kanbe ,  Mark Mercado ,  Mohammad Mirzamaani ,  Adam Polcyn ,  Kai Tang

IPC分类号： G11B5/66

CPC分类号： G11B5/732 ,  G11B5/656 ,  G11B5/66 ,  G11B5/7325

摘要： An antiferromagnetically coupled (AFC) magnetic recording medium with an AFC master layer comprising at least two magnetic layers with the top magnetic layer including copper is described. The slave layer is separated from the master layer structure by a nonmagnetic spacer layer selected to antiferromagnetically couple the layers. The master layer structure according to the invention includes a bottom and top layer of distinct ferromagnetic materials. Preferably, the top layer of the master layer is a cobalt alloy including from 1 to 5 at. % copper with an example being CoPt13Cr20B8Cu2. The AFC magnetic layer structure can be used with a variety of substrates including circumferentially textured glass and NiP/AlMg.

摘要翻译： 描述了具有包括至少两个具有顶部磁性层包括铜的磁性层的AFC主层的反铁磁耦合（AFC）磁记录介质。 通过选择用于反铁磁耦合层的非磁性间隔层将从属层与主层结构分离。 根据本发明的主层结构包括不同铁磁材料的底层和顶层。 优选地，主层的顶层是包括1至5个的钴合金。 ％铜，例如CoPt 13 C 20 20 B 2 Cu 2。 AFC磁性层结构可以与各种基材一起使用，包括圆周纹理玻璃和NiP / AlMg。