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1. 发明申请

US20100128391A1 Perpendicular Recording Media Having an Exchange-Spring Structure 有权
标题翻译：具有交换弹簧结构的垂直记录介质
公开(公告)号：US20100128391A1
公开(公告)日：2010-05-27
申请号：US12691603
申请日：2010-01-21
申请人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
发明人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
IPC分类号： G11B5/127 , G11B5/65 , G11B5/84
CPC分类号： G11B5/66 , G11B5/656
摘要： A recording medium providing improved writeability in perpendicular recording applications includes a magnetic recording layer having an axis of magnetic anisotropy substantially perpendicular to the surface thereof, an exchange-spring layer ferromagnetically exchange coupled to the magnetic recording layer and having a coercivity less than the magnetic recording layer coercivity, and a coupling layer between the magnetic recording layer and the exchange-spring layer. The coupling layer regulates the ferromagnetic exchange coupling between the magnetic recording layer and the exchange-spring layer.
摘要翻译：在垂直记录应用中提供改善的写入能力的记录介质包括具有基本上垂直于其表面的磁各向异性轴的磁记录层，耦合到磁记录层并具有小于磁记录的矫顽磁力的磁性交换弹簧层层矫顽力和磁记录层与交换弹簧层之间的耦合层。耦合层调节磁记录层与交换弹簧层之间的铁磁交换耦合。

2. 发明授权

US07687157B2 Perpendicular recording media having an exchange-spring structure 失效
标题翻译：具有交换弹簧结构的垂直记录介质
公开(公告)号：US07687157B2
公开(公告)日：2010-03-30
申请号：US11231516
申请日：2005-09-21
申请人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
发明人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/656
摘要： A recording medium providing improved writeability in perpendicular recording applications includes a magnetic recording layer having an axis of magnetic anisotropy substantially perpendicular to the surface thereof, an exchange-spring layer ferromagnetically exchange coupled to the magnetic recording layer and having a coercivity less than the magnetic recording layer coercivity, and a coupling layer between the magnetic recording layer and the exchange-spring layer. The coupling layer regulates the ferromagnetic exchange coupling between the magnetic recording layer and the exchange-spring layer.
摘要翻译：在垂直记录应用中提供改善的写入能力的记录介质包括具有基本上垂直于其表面的磁各向异性轴的磁记录层，耦合到磁记录层并具有小于磁记录的矫顽磁力的磁性交换弹簧层层矫顽力和磁记录层与交换弹簧层之间的耦合层。耦合层调节磁记录层与交换弹簧层之间的铁磁交换耦合。

3. 发明申请

US20070243418A1 Perpendicular magnetic recording medium with laminated recording layers formed of exchange-coupled ferromagnetic layers 有权
标题翻译：具有由交换耦合铁磁层形成的层压记录层的垂直磁记录介质
公开(公告)号：US20070243418A1
公开(公告)日：2007-10-18
申请号：US11403468
申请日：2006-04-12
申请人： Eric Fullerton , David Margulies , Hal Rosen , Natacha Supper
发明人： Eric Fullerton , David Margulies , Hal Rosen , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/65
摘要： A laminated perpendicular magnetic recording medium has two recording layers (RL1 and RL2) that are separated and magnetically decoupled by a nonmagnetic spacer layer (SL). The SL has a thickness and composition to assure there is no antiferromagnetic or ferromagnetic coupling between RL1 and RL2. Thus in the presence of the write field, RL1 and RL2 respond independently and become oriented with the direction of the write field. Each RL is an “exchange-spring” type magnetic recording layer formed of two ferromagnetic layers (MAG1 and MAG2) that have substantially perpendicular magnetic anisotropy and are ferromagnetically exchange-coupled by a nonmagnetic or weakly ferromagnetic coupling layer (CL). The medium takes advantage of lamination to attain higher signal-to-noise ratio (SNR) yet has improved writability as a result of each RL being an exchange-spring type RL.
摘要翻译：层叠的垂直磁记录介质具有由非磁性间隔层（SL）分离并磁解除的两个记录层（RL 1和RL 2）。 SL具有厚度和组成，以确保在RL 1和RL 2之间不存在反铁磁或铁磁耦合。因此，在存在写入场的情况下，RL 1和RL 2独立地响应并且随着写入场的方向而取向。每个RL是由两个铁磁层（MAG1和MAG2）形成的“交换弹簧”型磁记录层，它们具有基本上垂直的磁各向异性，并且通过非磁性或弱铁磁耦合层（CL）进行铁磁交换耦合。介质利用层叠来获得更高的信噪比（SNR），而由于每个RL是交换弹簧型RL，所以具有改进的可写性。

4. 发明申请

US20070292721A1 Perpendicular magnetic recording medium 审中-公开
标题翻译：垂直磁记录介质
公开(公告)号：US20070292721A1
公开(公告)日：2007-12-20
申请号：US11789891
申请日：2007-04-25
申请人： Andreas Berger , Xiaoping Bian , Qing Dai , Hoa Do , Eric Fullerton , Bernd Heinz , Yoshihiro Ikeda , David Margulies , Mary Minardi , Mohammad Mirzamaani , Hal Rosen , Natacha Supper , Kentaro Takano , Min Xiao
发明人： Andreas Berger , Xiaoping Bian , Qing Dai , Hoa Do , Eric Fullerton , Bernd Heinz , Yoshihiro Ikeda , David Margulies , Mary Minardi , Mohammad Mirzamaani , Hal Rosen , Natacha Supper , Kentaro Takano , Min Xiao
IPC分类号： G11B5/66 , G11B5/706
CPC分类号： G11B5/66 , G11B5/65 , G11B5/7325 , G11B5/851
摘要： A perpendicular magnetic recording medium including improvements to the recording layer (RL), exchange break layer (EBL), soft underlayer (SUL), overcoat (OC), adhesion layer (AL) and the combination of the layers. Advances in the RL include a cap layer. Improvements in the EBL include a multiple layer EBL.
摘要翻译：包括对记录层（RL），交换破坏层（EBL），软底层（SUL），外涂层（OC），粘合层（AL）以及这些层的组合的改进的垂直磁记录介质。 RL的进步包括盖层。 EBL的改进包括多层EBL。

5. 发明申请

US20060210835A1 Disk drive with laminated magnetic thin films with sublayers for magnetic recording 有权
标题翻译：具有层叠磁性薄膜的磁盘驱动器，具有用于磁记录的子层
公开(公告)号：US20060210835A1
公开(公告)日：2006-09-21
申请号：US11084402
申请日：2005-03-18
申请人： Hoa Do , Eric Fullerton , David Margulies , Natacha Supper
发明人： Hoa Do , Eric Fullerton , David Margulies , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/656 , G11B5/66
摘要： 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.
摘要翻译：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。

6. 发明申请

US20060210834A1 Laminated magnetic thin films with sublayers for magnetic recording 审中-公开
标题翻译：具有用于磁记录的子层的层压磁性薄膜
公开(公告)号：US20060210834A1
公开(公告)日：2006-09-21
申请号：US11084401
申请日：2005-03-18
申请人： Hoa Do , Eric Fullerton , David Margulies , Natacha Supper
发明人： Hoa Do , Eric Fullerton , David Margulies , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/656 , G11B5/66
摘要： The invention uses 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 in a magnetic recording medium. 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.
摘要翻译：本发明使用层叠磁性层结构的至少一个磁性层中的上部和下部子层，其包括使磁性记录介质中的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。

7. 发明授权

US07713591B2 Longitudinal patterned media with circumferential anisotropy for ultra-high density magnetic recording 有权
标题翻译：具有圆周各向异性的纵向图案介质，用于超高密度磁记录
公开(公告)号：US07713591B2
公开(公告)日：2010-05-11
申请号：US11209275
申请日：2005-08-22
申请人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
发明人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
IPC分类号： C23C14/48 , C23C14/58 , C23C14/14 , B05D5/00 , B05D3/06
CPC分类号： G11B5/852 , G11B5/855
摘要： An apparatus and method is disclosed for orienting the magnetic anisotropy of longitudinal patterned magnetic recording media. A disk-shaped longitudinal granular magnetic recording medium is provided having a high orientation ratio in the circumferential direction. The medium is then patterned to form a uniform array of magnetic islands. The magnetic islands are then irradiated with ions to increase the magnetic exchange coupling between the grains of each island. This aligns the axes of magnetic anisotropy of the individual grains with the average axis of magnetic anisotropy of the grains, thereby aligning the magnetic anisotropy of each island along the circumferential direction.
摘要翻译：公开了用于定向纵向图案化磁记录介质的磁各向异性的装置和方法。在圆周方向上具有高取向比的圆盘状纵向粒状磁记录介质。然后将介质图案化以形成均匀的磁岛阵列。然后用离子照射磁岛以增加每个岛的颗粒之间的磁交换耦合。使各晶粒的磁各向异性轴与晶粒的磁各向异性的平均轴对齐，从而沿着圆周方向对准各岛的磁各向异性。

8. 发明授权

US07479332B2 Method and apparatus for improving signal-to-noise ratio in longitudinal recording media 失效
标题翻译：用于提高纵向记录介质中信噪比的方法和装置
公开(公告)号：US07479332B2
公开(公告)日：2009-01-20
申请号：US11073890
申请日：2005-03-07
申请人： Eric Edward Fullerton , David Thomas Margulies , Natacha Supper , Hoa Van Do
发明人： Eric Edward Fullerton , David Thomas Margulies , Natacha Supper , Hoa Van Do
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/732 , G11B5/7325 , G11B5/851
摘要： A method and apparatus for improving the signal-to-noise ratio in a longitudinal recording media is disclosed. The apparatus includes a first recording layer of the longitudinal recording media residing at the top of a recording media structure. The first recording layer includes an upper sublayer comprised of a CoPtCrB-based alloy material. The first recording layer also includes a lower sublayer comprised of a CoPtCrB-based alloy material and a middle sublayer comprised of a CoCrB-alloy. The middle sublayer is coupled to the upper sublayer and to the lower sublayer and is substantially thinner than the upper sublayer and the lower sublayer.
摘要翻译：公开了一种用于改善纵向记录介质中的信噪比的方法和装置。该装置包括位于记录介质结构顶部的纵向记录介质的第一记录层。第一记录层包括由CoPtCrB基合金材料构成的上层。第一记录层还包括由CoPtCrB基合金材料和由CoCrB合金构成的中间子层构成的下层。中间子层耦合到上子层和下子层，并且基本上比上子层和下子层更薄。

9. 发明授权

US07425377B2 Incoherently-reversing magnetic laminate with exchange coupled ferromagnetic layers 有权
标题翻译：具有交换耦合铁磁层的不相干反磁性层压板
公开(公告)号：US07425377B2
公开(公告)日：2008-09-16
申请号：US11051536
申请日：2005-02-04
申请人： Eric Edward Fullerton , Hoa Van Do , David Thomas Margulies , Natacha Supper
发明人： Eric Edward Fullerton , Hoa Van Do , David Thomas Margulies , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/656 , Y10T428/24975
摘要： A laminate structure is disclosed comprising multiple ferromagnetic layers achieving incoherent reversal while maintaining good SNR. A high magnetic moment density, low anisotropy field material may form a thin overlayer deposited over a high-anisotropy media layer. The media layer may have a lower magnetic moment density than the overlayer and have decoupled magnetic grains. A coupling layer may be interposed between the overlayer and the media layer to modulate the exchange there between, thereby reducing the pass-through of noise while still promoting incoherent reversal to achieve reduced write energy requirements.
摘要翻译：公开了一种层叠结构，其包括多个铁磁层，同时保持良好的SNR，实现非相干反转。高磁矩密度低的各向异性场材料可以形成沉积在高各向异性介质层上的薄覆盖层。介质层可以具有比覆盖层更低的磁矩密度并且具有去耦的磁性颗粒。耦合层可以插入在覆盖层和介质层之间以调制其间的交换，从而减少噪声的通过，同时仍然促进不相干的反转以实现降低的写入能量需求。

10. 发明申请

US20070042229A1 Longitudinal patterned media with circumferential anisotropy for ultra-high density magnetic recording 有权
标题翻译：具有圆周各向异性的纵向图案介质，用于超高密度磁记录
公开(公告)号：US20070042229A1
公开(公告)日：2007-02-22
申请号：US11209275
申请日：2005-08-22
申请人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
发明人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
IPC分类号： G11B5/65 , B05D5/12 , B29C71/04
CPC分类号： G11B5/852 , G11B5/855
摘要： An apparatus and method is disclosed for orienting the magnetic anisotropy of longitudinal patterned magnetic recording media. A disk-shaped longitudinal granular magnetic recording medium is provided having a high orientation ratio in the circumferential direction. The medium is then patterned to form a uniform array of magnetic islands. The magnetic islands are then irradiated with ions to increase the magnetic exchange coupling between the grains of each island. This aligns the axes of magnetic anisotropy of the individual grains with the average axis of magnetic anisotropy of the grains, thereby aligning the magnetic anisotropy of each island along the circumferential direction.
摘要翻译：公开了用于定向纵向图案化磁记录介质的磁各向异性的装置和方法。在圆周方向上具有高取向比的圆盘状纵向粒状磁记录介质。然后将介质图案化以形成均匀的磁岛阵列。然后用离子照射磁岛以增加每个岛的颗粒之间的磁交换耦合。使各晶粒的磁各向异性轴与晶粒的磁各向异性的平均轴对齐，从而沿着圆周方向对准各岛的磁各向异性。

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