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1.发明授权公开(公告)号：US08488276B1
公开(公告)日：2013-07-16
申请号：US12242210
申请日：2008-09-30
申请人： Hong-Sik Jung , Donald Stafford , B. Ramamurthy Acharya , Sudhir S. Malhotra , Gerardo A. Bertero
发明人： Hong-Sik Jung , Donald Stafford , B. Ramamurthy Acharya , Sudhir S. Malhotra , Gerardo A. Bertero
CPC分类号： G11B5/7325 , G11B5/8404 , G11B5/851 , Y10T29/49043 , Y10T29/49044
摘要： A perpendicular magnetic recording (PMR) media including a non-magnetic or superparamagnetic grain isolation magnetic anisotropy layer (GIMAL) to provide a template for initially well-isolated small grain microstructure as well as improvement of Ku in core grains of a magnetic recording layer. The GIMAL composition may be adjusted to have lattice parameters similar to a bottom magnetic recording layer and to provide a buffer for reducing interface strains caused by lattice mismatch between the bottom magnetic recording layer and an underlying layer.
摘要翻译： 包括非磁性或超顺磁性晶粒分离磁各向异性层（GIMAL）的垂直磁记录（PMR）介质，以提供用于初始良好分离的小晶粒微结构的模板以及磁记录层的芯颗粒中的Ku的改进。 可以将GIMAL组合物调整为具有类似于底部磁记录层的晶格参数，并提供用于减少由底部磁记录层和下层之间的晶格失配引起的界面应变的缓冲器。
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2.发明授权Sputtered cobalt oxide for perpendicular magnetic recording medium with low media noise 有权用于具有低介质噪声的垂直磁记录介质的溅射氧化钴公开(公告)号：US08394243B1
公开(公告)日：2013-03-12
申请号：US12242410
申请日：2008-09-30
申请人： Hong-Sik Jung , Donald Stafford , B. Ramamurthy Acharya , Sudhir S. Malhotra , Gerardo A. Bertero
发明人： Hong-Sik Jung , Donald Stafford , B. Ramamurthy Acharya , Sudhir S. Malhotra , Gerardo A. Bertero
CPC分类号： G11B5/82 , C23C14/08 , C23C14/3414 , G11B5/656 , G11B5/851 , Y10T428/115
摘要： Method of incorporating atomic oxygen into a magnetic recording layer by sputtering a target containing an oxide of cobalt. The oxide of cobalt may be sputtered to provide a readily dissociable source of oxygen which may increase the concentration of free cobalt atoms (Co) in the magnetic recording layer and also increase oxide content in the magnetic recording layer.
摘要翻译： 通过溅射含有钴的氧化物的靶将原子氧结合到磁记录层中的方法。 可以溅射钴的氧化物以提供容易解离的氧源，这可以增加磁记录层中游离钴原子（Co）的浓度，并且还增加磁记录层中的氧化物含量。
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3.发明申请公开(公告)号：US20120251842A1
公开(公告)日：2012-10-04
申请号：US13077160
申请日：2011-03-31
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。
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4.发明申请PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH IMPROVED MAGNETIC ANISOTROPY FIELD 审中-公开具有改进的磁性异相现象的全磁磁记录介质公开(公告)号：US20100035085A1
公开(公告)日：2010-02-11
申请号：US12525539
申请日：2008-01-29
申请人： Hong-Sik Jung , Gerardo Bertero , Emur Velu , Michael Cheng-Chi Kuo , B. Ramamurthy Acharya , Sudhir Malhotra
发明人： Hong-Sik Jung , Gerardo Bertero , Emur Velu , Michael Cheng-Chi Kuo , B. Ramamurthy Acharya , Sudhir Malhotra
CPC分类号： G11B5/7325 , G11B5/7379
摘要： A perpendicular magnetic recording medium comprising a substrate, a soft underlayer, a seed layer, a non-magnetic FCC NiW alloy underlayer, a non-magnetic HCP underlayer, and a magnetic layer. We have discovered that the combination of a seed layer comprising Ta and a NiW alloy underlayer uniquely improves media recording performance and thermal stability by achieving excellent coercivity of the thin bottom magnetic recording layer and narrow C axis orientation distribution.
摘要翻译： 包括基底，软底层，种子层，非磁性FCC NiW合金底层，非磁性HCP底层和磁性层的垂直磁记录介质。 我们发现，通过实现薄底磁记录层的优良矫顽力和窄C轴取向分布，包含Ta和NiW合金底层的种子层的组合独特地改善介质记录性能和热稳定性。
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5.发明授权Systems and methods for forming magnetic recording media with improved grain columnar growth for energy assisted magnetic recording 有权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
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。
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6.发明授权Dual-magnetic layer high anisotropy media with orientation initialization layer 有权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
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。
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7.发明授权Single layer small grain size FePT:C film for heat assisted magnetic recording media 有权单层小粒度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
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。
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公开(公告)号：US08530065B1
公开(公告)日：2013-09-10
申请号：US12854115
申请日：2010-08-10
IPC分类号： 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。
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公开(公告)号：US20130071694A1
公开(公告)日：2013-03-21
申请号：US13234399
申请日：2011-09-16
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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公开(公告)号：US06551728B1
公开(公告)日：2003-04-22
申请号：US09539944
申请日：2000-03-31
IPC分类号： A11B566
CPC分类号： G11B5/656 , G11B5/66 , G11B7/00 , Y10S428/90 , Y10T428/12465 , Y10T428/24942 , Y10T428/2495 , Y10T428/265
摘要： A magnetic recording medium is constructed to include a non-magnetic underlayer, and a magnetic layer including a compensation layer provided on the nonmagnetic underlayer, and a recording layer provided on the compensation layer, where the compensation layer has a thickness of 3 to 15 nm and is made of Co or a Co alloy with a Curie temperature of approximately 30 to 150° C., and the recording layer has a thickness of 10 to 30 nm and is made of a Co alloy with a Curie temperature of approximately 250 to 800° C.
摘要翻译： 磁记录介质被构造为包括非磁性底层和包括设置在非磁性底层上的补偿层的磁性层以及设置在补偿层上的记录层，其中补偿层的厚度为3至15nm 并由居里温度为约30至150℃的Co或Co合金制成，并且记录层的厚度为10至30nm，并且由居里温度为约250至800的Co合金制成 C。
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