公开(公告)号：US08263239B2

公开(公告)日：2012-09-11

申请号：US11475281

申请日：2006-06-26

Applicant: Andreas Klaus Berger ,  Hoa Van Do ,  Eric Edward Fullerton ,  David Thomas Margulies ,  Natacha Frederique Supper

Inventor： Andreas Klaus Berger ,  Hoa Van Do ,  Eric Edward Fullerton ,  David Thomas Margulies ,  Natacha Frederique Supper

IPC: G11B5/66

CPC classification number: G11B5/66 ,  G11B5/84

Abstract: A laminated magnetic recording structure for use in perpendicular or longitudinal recording is described. A small amount of ferromagnetic coupling is added between the two magnetic layers that are sufficiently decoupled to switch independently. In one embodiment the coupling is achieved by doping the spacer layer with a ferromagnetic material. Ruthenium (Ru), which is a preferred nonmagnetic material for spacer layers with cobalt (Co) being the preferred magnetic material. The weak ferromagnetic coupling can also be achieved through the use of platinum, palladium and alloys thereof for the spacer layer without the addition of a ferromagnetic element, but alternatively they can also be doped with ferromagnetic elements. For embodiments for perpendicular recording the spacer layer further can additionally comprise oxides of one or more elements selected from the group consisting of Si, Ta, Ti, Nb, Cr, V and B.

Abstract translation: 描述了用于垂直或纵向记录的层叠磁记录结构。 在两个磁性层之间添加少量铁磁耦合，这两个磁性层被充分地去耦以独立地开关。 在一个实施例中，通过用铁磁材料掺杂间隔层来实现耦合。 钌（Ru），其是用于具有钴（Co）的优选磁性材料的间隔层的优选非磁性材料。 弱铁磁耦合也可以通过使用铂，钯及其合金作为间隔层，而不添加铁磁性元件，但也可以掺杂铁磁元件。 对于垂直记录的实施例，间隔层还可另外包含选自Si，Ta，Ti，Nb，Cr，V和B中的一种或多种元素的氧化物。

公开(公告)号：US20070298285A1

公开(公告)日：2007-12-27

申请号：US11475281

申请日：2006-06-26

Applicant: Andreas Klaus Berger ,  Hoa Van Do ,  Eric Edward Fullerton ,  David Thomas Margulies ,  Natacha Frederique Supper

Inventor： Andreas Klaus Berger ,  Hoa Van Do ,  Eric Edward Fullerton ,  David Thomas Margulies ,  Natacha Frederique Supper

IPC: G11B5/66 ,  B05D5/12

CPC classification number: G11B5/66 ,  G11B5/84

Abstract: A laminated magnetic recording structure for use in perpendicular or longitudinal recording is described. A small amount of ferromagnetic coupling is added between the two magnetic layers that are sufficiently decoupled to switch independently. In one embodiment the coupling is achieved by doping the spacer layer with a ferromagnetic material. Ruthenium (Ru), which is a preferred nonmagnetic material for spacer layers with cobalt (Co) being the preferred magnetic material. The weak ferromagnetic coupling can also be achieved through the use of platinum, palladium and alloys thereof for the spacer layer without the addition of a ferromagnetic element, but alternatively they can also be doped with ferromagnetic elements. For embodiments for perpendicular recording the spacer layer further can additionally comprise oxides of one or more elements selected from the group consisting of Si, Ta, Ti, Nb, Cr, V and B.

Abstract translation: 描述了用于垂直或纵向记录的层叠磁记录结构。 在两个磁性层之间添加少量铁磁耦合，这两个磁性层被充分地去耦以独立地开关。 在一个实施例中，通过用铁磁材料掺杂间隔层来实现耦合。 钌（Ru），其是用于具有钴（Co）的优选磁性材料的间隔层的优选非磁性材料。 弱铁磁耦合也可以通过使用铂，钯及其合金作为间隔层，而不添加铁磁性元件，但也可以掺杂铁磁元件。 对于垂直记录的实施例，间隔层还可另外包含选自Si，Ta，Ti，Nb，Cr，V和B中的一种或多种元素的氧化物。

公开(公告)号：US07976964B2

公开(公告)日：2011-07-12

申请号：US11084402

申请日：2005-03-18

Applicant: Hoa Van Do ,  Eric Edward Fullerton ,  David Thomas Margulies ,  Natacha Frederique Supper

Inventor： Hoa Van Do ,  Eric Edward Fullerton ,  David Thomas Margulies ,  Natacha Frederique Supper

IPC: G11B5/66

CPC classification number: G11B5/656 ,  G11B5/66

Abstract: The invention includes a disk drive with a magnetic recording disk with an upper and lower sublayer in at least one magnetic layer of a laminated magnetic layer structure that includes a spacer layer that substantially decouples the magnetic layers. The lower sublayer has a lower boron content than the upper sublayer and a preferred embodiment is CoPtCrBTa. The upper sublayer is deposited onto the lower sublayer and is preferably CoPtCrB with a higher boron content than the lower sublayer. The composition of the lower sublayer gives it a very low moment with low intrinsic coercivity which would not be useful as a recording layer on its own. The upper sublayer is a higher moment alloy with high intrinsic coercivity. An embodiment of the invention includes a laminated magnetic layer structure which is antiferromagnetically coupled to a lower ferromagnetic layer.

Abstract translation: 本发明包括具有磁记录盘的磁盘驱动器，该磁盘驱动器具有在层叠磁性层结构的至少一个磁性层中具有上和下子层的磁记录盘，该磁层包括使磁性层基本上分离的间隔层。 下层具有比上层更低的硼含量，优选实施方案是CoPtCrBTa。 上部子层沉积在下部子层上，优选的是具有比下部子层更高的硼含量的CoPtCrB。 下层的组成使得其具有低固有矫顽力的非常低的力矩，其本身不会用作记录层。 上层是具有高固有矫顽力的较高的力矩合金。 本发明的实施例包括层叠的磁性层结构，其被反铁磁耦合到下铁磁层。

公开(公告)号：US20080096053A1

公开(公告)日：2008-04-24

申请号：US11584992

申请日：2006-10-23

Applicant: Xiaoping Bian ,  Qing Dai ,  Hoa Do ,  Yoshihiro Ikeda ,  David Margulies ,  Mary Frances Minardi ,  Natacha Frederique Supper ,  Kentaro Takano ,  Min Xiao ,  Qi-Fan Xiao

Inventor： Xiaoping Bian ,  Qing Dai ,  Hoa Do ,  Yoshihiro Ikeda ,  David Margulies ,  Mary Frances Minardi ,  Natacha Frederique Supper ,  Kentaro Takano ,  Min Xiao ,  Qi-Fan Xiao

IPC: G11B5/66

CPC classification number: G11B5/667 ,  G11B5/65 ,  G11B5/66 ,  G11B5/7325

Abstract: An improved structure for the construction of perpendicular recording media is disclosed. The structure includes a perpendicular recording layer with at least two oxide sublayers or a lower sublayer of a non-oxide. One structure includes an upper sublayer comprised of a Silicon-oxide, while a lower sublayer is comprised of a Tantalum-oxide. The structures provide for increased coercivity and corrosion resistance.

Abstract translation: 公开了用于构建垂直记录介质的改进的结构。 该结构包括具有至少两个氧化物层的垂直记录层或非氧化物的下层。 一个结构包括由氧化硅构成的上层，而下层由钽氧化物构成。 该结构提供增强的矫顽力和耐腐蚀性。

公开(公告)号：US07862913B2

公开(公告)日：2011-01-04

申请号：US11584992

申请日：2006-10-23

Applicant: Xiaoping Bian ,  Qing Dai ,  Hoa Do ,  Yoshihiro Ikeda ,  David Margulies ,  Mary Frances Minardi ,  Natacha Frederique Supper ,  Kentaro Takano ,  Min Xiao ,  Qi-Fan Xiao

Inventor： Xiaoping Bian ,  Qing Dai ,  Hoa Do ,  Yoshihiro Ikeda ,  David Margulies ,  Mary Frances Minardi ,  Natacha Frederique Supper ,  Kentaro Takano ,  Min Xiao ,  Qi-Fan Xiao

IPC: G11B5/66 ,  G11B5/706

CPC classification number: G11B5/667 ,  G11B5/65 ,  G11B5/66 ,  G11B5/7325

Abstract: An improved structure for the construction of perpendicular recording media is disclosed. The structure includes a perpendicular recording layer with at least two oxide sublayers or a lower sublayer of a non-oxide. One structure includes an upper sublayer comprised of a Silicon-oxide, while a lower sublayer is comprised of a Tantalum-oxide. The structures provide for increased coercivity and corrosion resistance.

Abstract translation: 公开了用于构建垂直记录介质的改进的结构。 该结构包括具有至少两个氧化物层的垂直记录层或非氧化物的下层。 一个结构包括由氧化硅构成的上层，而下层由钽氧化物构成。 该结构提供增强的矫顽力和耐腐蚀性。

公开(公告)号：US07833640B2

公开(公告)日：2010-11-16

申请号：US11208207

申请日：2005-08-19

Applicant: Ernesto E. Marinero ,  Natacha Frederique Supper ,  Brian R. York

Inventor： Ernesto E. Marinero ,  Natacha Frederique Supper ,  Brian R. York

IPC: G11B5/667

CPC classification number: G11B5/7325 ,  G11B5/65

Abstract: An improved structure for the construction of perpendicular recording media is disclosed. The structure includes a tri-layer IML resident between a soft under layer CoTaZr film and a CoPtCr—SiO2 magnetic media. In an embodiment, the tri-layer comprises a RuxCr1−x layer over dual nucleation layers of Ni—Fe and Ni—Fe—Cr. The tri-layer replaces the typical Ru and Ni—Fe intermediate layers of the prior art, resulting in considerable improvement in lattice matching between the Ru containing intermediate layer and the CoPtCr—SiO2 magnetic media, further resulting in improved magnetic media performance.

Abstract translation: 公开了用于构建垂直记录介质的改进的结构。 该结构包括驻留在软底层CoTaZr膜和CoPtCr-SiO 2磁性介质之间的三层IML。 在一个实施方案中，三层包括在Ni-Fe和Ni-Fe-Cr的双成核层上的RuxCr1-x层。 三层代替现有技术的典型的Ru和Ni-Fe中间层，导致含Ru中间层和CoPtCr-SiO 2磁介质之间的晶格匹配相当大的改进，进一步导致改善的磁介质性能。

公开(公告)号：US07556870B2

公开(公告)日：2009-07-07

申请号：US11204979

申请日：2005-08-15

Applicant: Hoa Van Do ,  Eric Edward Fullerton ,  David Thomas Margulies ,  Natacha Frederique Supper

Inventor： Hoa Van Do ,  Eric Edward Fullerton ,  David Thomas Margulies ,  Natacha Frederique Supper

IPC: G11B5/66

CPC classification number: G11B5/66

Abstract: An embodiment of the invention is a layered magnetic thin film structure that uses antiferromagnetically coupled (AFC) magnetic layers where the top layer structure consists of an upper magnetic layer that is weakly ferromagnetically coupled via a nonmagnetic or weakly magnetic exchange coupling layer (interlayer) to a ferromagnetic exchange enhancing layer that is in turn, AF coupled to the lower ferromagnetic layer of the AFC structure. Preferred materials for the weak coupling layer include alloys of cobalt such as CoRu, CoBRu and CoCr in which the Co content is below the point at which the material would be ferromagnetic. A second embodiment of the invention is a laminated, AF-coupled media structure. In this structure the lower AFC layer that makes up the lower laminate layer includes: the middle magnetic layer, the weak ferromagnetic coupling layer, and the exchange enhancing layer.

Abstract translation: 本发明的一个实施方案是使用反铁磁耦合（AFC）磁性层的层状磁性薄膜结构，其中顶层结构由通过非磁性或弱磁性交换耦合层（中间层）弱铁磁耦合的上部磁性层组成， 铁磁交换增强层，其依次是AF耦合到AFC结构的下铁磁层。 用于弱耦合层的优选材料包括诸如CoRu，CoBRu和CoCr的钴的合金，其中Co含量低于材料将是铁磁性的点。 本发明的第二实施例是层叠的AF耦合介质结构。 在该结构中，构成下层叠层的下部AFC层包括：中间磁性层，弱铁磁性结合层和交换增强层。