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1. 发明授权

US08605555B1 Recording media with multiple bi-layers of heatsink layer and amorphous layer for energy assisted magnetic recording system and methods for fabricating the same 有权
标题翻译：具有用于能量辅助磁记录系统的多个散热层和非晶层的双层记录介质及其制造方法
公开(公告)号：US08605555B1
公开(公告)日：2013-12-10
申请号：US13451380
申请日：2012-04-19
申请人： Alexander S. Chernyshov , Hua Yuan , Bogdan Valcu , Antony Ajan , B. Ramamurthy Acharya
发明人： Alexander S. Chernyshov , Hua Yuan , Bogdan Valcu , Antony Ajan , B. Ramamurthy Acharya
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： An energy assisted magnetic recording (EAMR) system includes a magnetic recording medium including a plurality of bi-layers and a magnetic recording layer on the plurality of bi-layers, a magnetic transducer configured to write information to the magnetic recording medium, and a light source positioned proximate the magnetic transducer and configured to heat the magnetic recording medium. Each of the plurality of bi-layers includes a heatsink layer and an amorphous under-layer on the heatsink layer.
摘要翻译：能量辅助磁记录（EAMR）系统包括在多个双层上包括多个双层和磁记录层的磁记录介质，配置成将信息写入磁记录介质的磁传感器，以及光源位于靠近磁换能器并被配置为加热磁记录介质。多个双层中的每一个在散热层上包括散热层和无定形底层。

2. 发明授权

US08941950B2 Underlayers for heat assisted magnetic recording (HAMR) media 有权
标题翻译：用于热辅助磁记录（HAMR）介质的底层
公开(公告)号：US08941950B2
公开(公告)日：2015-01-27
申请号：US13479217
申请日：2012-05-23
申请人： Hua Yuan , Antony Ajan , Alexander S. Chernyshov , B. Ramamurthy Acharya
发明人： Hua Yuan , Antony Ajan , Alexander S. Chernyshov , B. Ramamurthy Acharya
IPC分类号： G11B5/73 , G11B5/82
CPC分类号： G11B5/7325 , G11B5/65
摘要： Various embodiments provide for a heat assisted magnetic recording (HAMR) media comprising: a magnetic recording layer; a barrier layer disposed under the magnetic recording layer; a first underlayer disposed under the barrier layer; and an amorphous seedlayer disposed under the first underlayer. For some embodiments, the recording medium may comprise: a magnetic recording layer including FePt alloy, a CoPt alloy, or a FePd alloy; a barrier layer including MgO, TiC, TiN, CrN, TiCN, β-WC, TaC, HfC, ZrC, VC, NbC, or NiO; a first underlayer including RuAl-oxide, NiAl, FeAl, AlMn, CuBe, or AlRe; or an amorphous seedlayer including a Cr—X alloy, where X comprises Al, B, C, Cu, Hf, Ho, Mn, Mo, Ni, Ta, Ti, V, W, or Ru.
摘要翻译：各种实施例提供了一种热辅助磁记录（HAMR）介质，包括：磁记录层; 设置在所述磁记录层下方的阻挡层; 设置在所述阻挡层下方的第一底层; 以及设置在所述第一底层下方的无定形种子层。对于一些实施例，记录介质可以包括：包括FePt合金，CoPt合金或FePd合金的磁记录层; 包含MgO，TiC，TiN，CrN，TiCN，...，WC，TaC，HfC，ZrC，VC，NbC或NiO的阻挡层; 包括RuAl-氧化物，NiAl，FeAl，AlMn，CuBe或AlRe的第一底层; 或包含Cr-X合金的无定形籽晶层，其中X包括Al，B，C，Cu，Hf，Ho，Mn，Mo，Ni，Ta，Ti，V，W或Ru。

3. 发明授权

US08609263B1 Systems and methods for forming magnetic media with an underlayer 有权
标题翻译：用底层形成磁性介质的系统和方法
公开(公告)号：US08609263B1
公开(公告)日：2013-12-17
申请号：US13112959
申请日：2011-05-20
申请人： Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya , Antony Ajan
发明人： Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya , Antony Ajan
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/8404
摘要： Systems and methods for forming magnetic media with an underlayer are provided. One such method includes providing a non-magnetic substrate, forming a seed layer above the substrate, the seed layer including MgO, forming an underlayer on the seed layer, the underlayer including a material selected from the group consisting of Pd, Pt, W, Fe, V, Cu, and Ag, and forming a magnetic recording layer on the underlayer, the recording layer including FePt oxide.
摘要翻译：提供了用于形成具有底层的磁性介质的系统和方法。一种这样的方法包括提供非磁性基底，在基底上形成种子层，种子层包括MgO，在种子层上形成底层，底层包括选自Pd，Pt，W， Fe，V，Cu和Ag，并且在底层上形成磁记录层，记录层包括FePt氧化物。

4. 发明授权

US09269480B1 Systems and methods for forming magnetic recording media with improved grain columnar growth for energy assisted magnetic recording 有权
标题翻译：用于形成磁记录介质的系统和方法，具有改善的晶体柱状生长用于能量辅助磁记录
公开(公告)号：US09269480B1
公开(公告)日：2016-02-23
申请号：US13436596
申请日：2012-03-30
申请人： Antony Ajan , Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya
发明人： Antony Ajan , Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya
IPC分类号： H01F1/00
CPC分类号： G11B5/733 , G11B5/647 , G11B5/65 , G11B5/653 , G11B5/732 , G11B5/7325 , G11B5/855 , H01F1/0027 , H01F10/123 , H01F41/30
摘要： Systems and methods for forming magnetic recording media with improved columnar growth for energy assisted magnetic recording are provided. In one such method, a first sub-layer of a magnetic layer is formed on a substrate, the magnetic layer including a magnetic material and a plurality of non-magnetic segregants, a top surface of the first sub-layer is etched to substantially remove the non-magnetic segregants accumulated on the top surface, and a second sub-layer of the magnetic layer is formed on the first sub-layer.
摘要翻译：提供了用于形成用于能量辅助磁记录的具有改进的柱状生长的磁记录介质的系统和方法。在一种这样的方法中，磁性层的第一子层形成在衬底上，磁性层包括磁性材料和多个非磁性分离器，第一子层的顶表面被蚀刻以基本上除去聚集在顶表面上的非磁性分离体和磁性层的第二子层形成在第一子层上。

5. 发明授权

US07264892B2 Magnetic recording medium and magnetic storage apparatus 失效
标题翻译：磁记录介质和磁存储装置
公开(公告)号：US07264892B2
公开(公告)日：2007-09-04
申请号：US10936005
申请日：2004-09-08
申请人： Antony Ajan , Akihiro Inomata , E. Noel Abarra , B. Ramamurthy Acharya
发明人： Antony Ajan , Akihiro Inomata , E. Noel Abarra , B. Ramamurthy Acharya
IPC分类号： G11B5/66
CPC分类号： G11B5/732 , G11B5/012 , G11B5/656 , G11B5/66 , G11B5/7325 , Y10T428/265
摘要： A magnetic recording medium includes a substrate, a magnetic recording layer made of a Co alloy or a CoCr alloy, a seed layer disposed between the substrate and the magnetic recording layer, and an underlayer made of a binary alloy material having a B2 structure and disposed between the seed layer and the magnetic recording layer. The seed layer is made of a material comprising essentially of one of elements forming the binary alloy material of the underlayer.
摘要翻译：磁记录介质包括基板，由Co合金或CoCr合金制成的磁记录层，设置在基板和磁记录层之间的种子层，以及由具有B2结构的二元合金材料制成的底层在种子层和磁记录层之间。种子层由基本上由形成底层的二元合金材料的元素之一组成的材料制成。

6. 发明授权

US08945732B1 Dual-magnetic layer high anisotropy media with orientation initialization layer 有权
标题翻译：双磁性层各向异性介质具有取向初始化层
公开(公告)号：US08945732B1
公开(公告)日：2015-02-03
申请号：US12850951
申请日：2010-08-05
申请人： Hua Yuan , Alexander Chernyshov , B. Ramamurthy Acharya
发明人： Hua Yuan , Alexander Chernyshov , B. Ramamurthy Acharya
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/65 , G11B5/667 , G11B5/7325
摘要： A recording medium comprising a magnetic recording layer having an axis of magnetic anisotropy substantially perpendicular to the surface thereof, a soft magnetic underlayer disposed under the magnetic recording layer and physically coupled to the magnetic recording layer through one or more intermediate layers magnetically decoupling the soft magnetic underlayer from the magnetic recording layer, and an orientation initialization layer disposed between the magnetic recording layer and the soft magnetic underlayer.
摘要翻译：一种记录介质，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，设置在该磁记录层下面并通过一个或多个中间层物理耦合到磁记录层的软磁性底层，来自磁记录层的底层，以及设置在磁记录层和软磁性底层之间的取向初始化层。

7. 发明授权

US08889275B1 Single layer small grain size FePT:C film for heat assisted magnetic recording media 有权
标题翻译：单层小粒度FePT：C膜用于热辅助磁记录介质
公开(公告)号：US08889275B1
公开(公告)日：2014-11-18
申请号：US12860616
申请日：2010-08-20
申请人： Hua Yuan , Alexander Chernyshov , B. Ramamurthy Acharya
发明人： Hua Yuan , Alexander Chernyshov , B. Ramamurthy Acharya
IPC分类号： G11B5/667 , G11B5/65
CPC分类号： G11B5/851 , C23C14/14 , C23C14/3407 , C23C14/35 , G11B5/65 , G11B5/653 , G11B5/667 , G11B5/84
摘要： FePt-based heat assisted magnetic recording (HAMR) media comprising a thick granular FePt:C magnetic recording layer capable of maintaining a single layer film having desirable magnetic properties. According to one embodiment, the thick granular FePt:C magnetic recording layer comprises a plurality of carbon doped FePt alloy columnar grains, where the plurality of carbon doped FePt alloy columnar grains comprise a carbon gradient along the thickness of the hard magnetic recording layer.
摘要翻译：基于FePt的热辅助磁记录（HAMR）介质，其包含能够保持具有期望磁性的单层膜的厚的粒状FePt：C磁记录层。根据一个实施例，厚的粒状FePt：C磁记录层包括多个碳掺杂的FePt合金柱状晶粒，其中多个掺碳的FePt合金柱状晶粒沿着硬磁记录层的厚度具有碳梯度。

8. 发明授权

US08530065B1 Composite magnetic recording medium 有权
标题翻译：复合磁记录介质
公开(公告)号：US08530065B1
公开(公告)日：2013-09-10
申请号：US12854115
申请日：2010-08-10
申请人： Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya
发明人： Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya
IPC分类号： G11B5/667
CPC分类号： G11B5/65 , G11B5/66 , G11B5/667
摘要： A composite hard magnetic recording layer for a magnetic storage comprises a hard magnetic layer and a capping layer. The composite recording layer has a crystal structure where crystal grains include a portion within the magnetic layer and a portion within the capping layer.
摘要翻译：用于磁存储的复合硬磁记录层包括硬磁性层和覆盖层。复合记录层具有晶体结构，其中晶粒包括磁性层内的部分和覆盖层内的部分。

9. 发明申请

US20120251842A1 LOW ROUGHNESS HEATSINK DESIGN FOR HEAT ASSISTED MAGNETIC RECORDING MEDIA 审中-公开
标题翻译：用于热辅助磁记录介质的低粗糙度散热器设计
公开(公告)号：US20120251842A1
公开(公告)日：2012-10-04
申请号：US13077160
申请日：2011-03-31
申请人： Hua Yuan , Alexander Chernyshov , Gerardo A. Bertero , B. Ramamurthy Acharya
发明人： Hua Yuan , Alexander Chernyshov , Gerardo A. Bertero , B. Ramamurthy Acharya
IPC分类号： B05D5/12 , C21D1/68 , G11B5/33 , B01J19/08
CPC分类号： G11B5/8404 , G11B5/7325 , G11B5/7379
摘要： A magnetic recording medium comprises a substrate; a heatsink layer comprising a layer of crystallized CuTi; and a hard magnetic recording layer. The crystallized CuTi is applied in an amorphous state and then crystallized through heating. The use of this heatsink improves surface and underlayer roughness compared to previous heatsink designs.
摘要翻译：磁记录介质包括基底; 包含结晶的CuTi层的散热层; 和硬磁记录层。结晶的CuTi以非晶态施加，然后通过加热结晶。与以前的散热器设计相比，使用这种散热器可以改善表面和底层粗糙度。

10. 发明申请

US20130071694A1 INTERLAYERS FOR MAGNETIC RECORDING MEDIA 有权
标题翻译：磁记录介质层
公开(公告)号：US20130071694A1
公开(公告)日：2013-03-21
申请号：US13234399
申请日：2011-09-16
申请人： Kumar Srinivasan , B. Ramamurthy Acharya
发明人： Kumar Srinivasan , B. Ramamurthy Acharya
IPC分类号： G11B5/66 , C23C14/34
CPC分类号： C23C14/165 , C23C14/025 , G11B5/7325 , G11B5/8404
摘要： Embodiments of the present invention include a recording medium comprising: a hard magnetic recording layer and an interlayer disposed under the hard magnetic recording layer, wherein the interlayer comprises an upper layer of Ru-based alloy and a lower layer of RuCo or ReCo alloy. Generally for embodiments of the present invention, the lower layer of RuCo or ReCo alloy is formed over a seed layer using a low-pressure sputter process, and the upper layer of Ru-based alloy is formed over the lower layer using a high-pressure sputter process.
摘要翻译：本发明的实施例包括记录介质，包括：硬磁记录层和设置在硬磁记录层下面的中间层，其中中间层包含Ru基合金的上层和RuCo或ReCo合金的下层。通常对于本发明的实施方案，使用低压溅射工艺在种子层上形成RuCo或ReCo合金的下层，并且使用高压在低层上形成上层Ru基合金溅射工艺。

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