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公开(公告)号：US20170117010A1
公开(公告)日：2017-04-27
申请号：US15007907
申请日：2016-01-27
发明人： Takeshi Iwasaki , Akira Fujimoto
CPC分类号： G11B5/732 , G11B5/667 , G11B5/7315 , G11B5/7325 , G11B5/8404 , G11B5/8408 , G11B5/851
摘要： According to one embodiment, a magnetic recording medium with high magnetic recording characteristics and improved corrosion resistance is obtained. The magnetic recording medium includes a substrate, an orientation control layer provided on the substrate and made from a Ni alloy or an Ag alloy, a nonmagnetic seed layer provided to be in contact with the orientation control layer, a perpendicular magnetic recording layer containing Fe or Co and Pt as main components. The nonmagnetic seed layer is formed of Ag particles, Ge grain boundaries and a compound X, and the compound X is selected from an oxide, nitride or carbide of aluminum, titanium, chromium, silicon and tantalum and also distributed in both the Ag particles and Ge grain boundaries.
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公开(公告)号：US09633684B2
公开(公告)日：2017-04-25
申请号：US14528277
申请日：2014-10-30
发明人： Akira Watanabe , Soichi Oikawa
摘要： According to one embodiment, a magnetic recording medium includes a silicon oxide underlayer having a recess pattern having a plurality of recesses, a nonmagnetic underlayer having a first hole pattern having a plurality of holes corresponding to the recess pattern, and a magnetic recording layer having a second hole pattern having a plurality of holes connected with the first hole pattern. The silicon oxide underlayer, the nonmagnetic underlayer, and the magnetic recording layer are formed in order on the substrate.
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3.发明授权公开(公告)号：US09595285B2
公开(公告)日：2017-03-14
申请号：US14513461
申请日：2014-10-14
发明人： Takeshi Iwasaki , Akira Fujimoto
CPC分类号： G11B5/7325 , G11B5/732
摘要： According to one embodiment, a magnetic recording medium includes an orientation control layer formed on a non-magnetic substrate, the orientation control layer made of a Ni alloy or Ag alloy having fcc structure, a non-magnetic seed layer made of Ag, Ge, and a metal X selected from the group consisting of Al, Mg, Au, and Ti, a non-magnetic intermediate layer made of Ru or Ru alloy, and a magnetic recording layer. The orientation control layer is in contact with the non-magnetic seed layer.
摘要翻译： 根据一个实施例，磁记录介质包括形成在非磁性基板上的取向控制层，由具有fcc结构的Ni合金或Ag合金制成的取向控制层，由Ag，Ge制成的非磁性种子层， 和选自Al，Mg，Au和Ti的金属X，由Ru或Ru合金制成的非磁性中间层和磁记录层。 取向控制层与非磁性种子层接触。
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公开(公告)号：US09548075B2
公开(公告)日：2017-01-17
申请号：US14035582
申请日：2013-09-24
发明人： Takeshi Iwasaki
IPC分类号： G11B5/73
CPC分类号： G11B5/7325 , G11B5/732 , Y10T428/1164
摘要： According to one embodiment, a perpendicular magnetic recording medium has an arrangement obtained by sequentially stacking a nonmagnetic substrate, a soft magnetic underlayer, a nonmagnetic seed layer containing silver grains having an fcc structure and an amorphous germanium grain boundary formed between the silver grains, a reaction barrier layer containing 90 at % or more of silver or aluminum and having a thickness of 2 nm or less, a nonmagnetic interlayer formed on the reaction barrier layer and made of ruthenium or a ruthenium alloy, and a perpendicular magnetic recording layer.
摘要翻译： 根据一个实施例，垂直磁记录介质具有通过顺序地堆叠非磁性衬底，软磁性底层，含有具有fcc结构的银颗粒和在银颗粒之间形成的无定形锗晶界的非磁性种子层而获得的布置， 含有90at％或更多的银或铝并且厚度为2nm或更小的反应阻挡层，形成在反应阻挡层上并由钌或钌合金制成的非磁性中间层和垂直磁记录层。
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公开(公告)号：US20160099018A1
公开(公告)日：2016-04-07
申请号：US14879976
申请日：2015-10-09
申请人： Sony Corporation
发明人： Takashi Aizawa
CPC分类号： G11B5/73 , G11B5/65 , G11B5/7315 , G11B5/732 , G11B5/7325
摘要： A magnetic recording medium includes a flexible substrate, an amorphous seed layer, an under layer containing Ru, and a recording layer having a granular structure. The seed layer is provided between the substrate and the under layer. The under layer has a thickness in a range of 5 to 50 nm.
摘要翻译： 磁记录介质包括柔性基底，无定形种子层，含有Ru的下层和具有颗粒结构的记录层。 种子层设置在基底和下层之间。 底层的厚度为5〜50nm。
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6.发明申请公开(公告)号：US20160064023A1
公开(公告)日：2016-03-03
申请号：US14528277
申请日：2014-10-30
发明人： Akira WATANABE , Soichi Oikawa
摘要： According to one embodiment, a magnetic recording medium includes a silicon oxide underlayer having a recess pattern having a plurality of recesses, a nonmagnetic underlayer having a first hole pattern having a plurality of holes corresponding to the recess pattern, and a magnetic recording layer having a second hole pattern having a plurality of holes connected with the first hole pattern. The silicon oxide underlayer, the nonmagnetic underlayer, and the magnetic recording layer are formed in order on the substrate.
摘要翻译： 根据一个实施例，磁记录介质包括具有多个凹槽的凹槽图案的氧化硅底层，具有第一孔图案的非磁性底层，其具有与凹槽图案相对应的多个孔;以及磁记录层， 第二孔图案，具有与第一孔图案连接的多个孔。 在基板上依次形成氧化硅底层，非磁性底层和磁记录层。
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7.发明申请SYSTEMS AND METHODS FOR TUNING SEED LAYER HARDNESS IN COMPONENTS OF MAGNETIC RECORDING SYSTEMS 有权用于调整磁记录系统组成部分中的层状硬度的系统和方法公开(公告)号：US20150332720A1
公开(公告)日：2015-11-19
申请号：US14809775
申请日：2015-07-27
IPC分类号： G11B5/60
CPC分类号： G11B5/6082 , G11B5/732 , G11B5/84 , G11B5/8404 , G11B5/851 , Y10T29/49705
摘要： Systems and methods for tuning seed layer hardness in components of magnetic recording systems are described. One such system includes a substrate including a component of a magnetic recording system, a first deposition source configured to deposit a seed layer material on a portion of a top surface of the substrate at a first angle, and a second deposition source configured to deposit a carbon material including sp3 carbon bonds on the portion of the top surface at a second angle not equal to the first angle, where the first deposition source and the second deposition source deposit the seed layer material and the carbon material, respectively, simultaneously. The component can be a slider or a magnetic medium.
摘要翻译： 描述了用于调整磁记录系统的组件中种子层硬度的系统和方法。 一种这样的系统包括：包括磁记录系统的部件的基板;第一沉积源，被配置为以第一角度将种子层材料沉积在基板的顶表面的一部分上;以及第二沉积源， 其中第一沉积源和第二沉积源分别同时沉积种子层材料和碳材料，所述碳材料在顶表面的部分上以不等于第一角度的第二角度包括sp 3碳键。 该部件可以是滑块或磁性介质。
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8.发明授权Systems and methods for tuning seed layer hardness in components of magnetic recording systems 有权用于调整磁记录系统组件中种子层硬度的系统和方法公开(公告)号：US09093102B1
公开(公告)日：2015-07-28
申请号：US13797069
申请日：2013-03-12
CPC分类号： G11B5/6082 , G11B5/732 , G11B5/84 , G11B5/8404 , G11B5/851 , Y10T29/49705
摘要： Systems and methods for tuning seed layer hardness in components of magnetic recording systems are described. One such system includes a substrate including a component of a magnetic recording system, a first deposition source configured to deposit a seed layer material on a portion of a top surface of the substrate at a first angle, and a second deposition source configured to deposit a carbon material including sp3 carbon bonds on the portion of the top surface at a second angle not equal to the first angle, where the first deposition source and the second deposition source deposit the seed layer material and the carbon material, respectively, simultaneously. The component can be a slider or a magnetic medium.
摘要翻译： 描述了用于调整磁记录系统的组件中种子层硬度的系统和方法。 一种这样的系统包括：包括磁记录系统的部件的基板;第一沉积源，被配置为以第一角度将种子层材料沉积在基板的顶表面的一部分上;以及第二沉积源， 其中第一沉积源和第二沉积源分别同时沉积种子层材料和碳材料，所述碳材料在顶表面的部分上以不等于第一角度的第二角度包括sp 3碳键。 该部件可以是滑块或磁性介质。
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9.发明授权公开(公告)号：US09093099B2
公开(公告)日：2015-07-28
申请号：US13936798
申请日：2013-07-08
发明人： Yuki Inaba , Takehito Shimatsu
CPC分类号： G11B5/645 , G11B5/65 , G11B5/732 , G11B5/7325 , G11B5/84 , G11B5/8404
摘要： Provided are a perpendicular magnetic recording medium and a method for manufacturing the same, the perpendicular magnetic recording medium including an alloy (FePt, FePd, or CoPt) having a large Ku value with an L10 type ordered structure, and obtained with achievement of controlled crystal orientation and thin film formation without heating. Specifically, in the perpendicular magnetic recording medium, at least a nonmagnetic seed layer, a nonmagnetic underlayer, and a magnetic layer are formed in this order on a nonmagnetic substrate. The nonmagnetic seed layer includes a MgO layer and a metal layer having a body-centered cubic (bcc) structure. The nonmagnetic underlayer has a NaCl type structure of one selected from the group consisting of MgO, NiO, TiO, CrN, Ti carbides, and Ti nitrides. The magnetic layer includes an alloy selected from the group consisting of FePt, FePd, and CoPt having an L10 type ordered structure.
摘要翻译： 提供了一种垂直磁记录介质及其制造方法，该垂直磁记录介质包括具有L10型有序结构的具有大Ku值的合金（FePt，FePd或CoPt），并获得控制晶体 取向和薄膜形成而不加热。 具体地，在垂直磁记录介质中，至少非磁性种子层，非磁性底层和磁性层依次形成在非磁性基板上。 非磁性种子层包括MgO层和具有体心立方（bcc）结构的金属层。 非磁性底层具有选自MgO，NiO，TiO，CrN，Ti碳化物和Ti氮化物中的一种的NaCl型结构。 磁性层包括选自FePt，FePd和具有L10型有序结构的CoPt的合金。
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10.发明授权Magnetic recording media with small grain size and narrow c-axis dispersion by using dual seed layer with substrate bias 有权通过使用具有衬底偏置的双种子层，具有小晶粒尺寸和窄c轴分散的磁记录介质公开(公告)号：US08956741B1
公开(公告)日：2015-02-17
申请号：US13174604
申请日：2011-06-30
IPC分类号： G11B5/66
CPC分类号： G11B5/8404 , G11B5/732
摘要： Media may be produced with narrow c-axis dispersion while having small grain size and high grain density. A dual seed layer design and a substrate bias voltage may be applied during deposition of the seed layer are used in the media. In some embodiments, the first seed layer is an amorphous material because of a high content of elements with large atomic sizes. Application of the substrate bias during deposition of the second seed layer may reduce the grain size and may narrow c-axis dispersion.
摘要翻译： 可以生产具有窄的c轴分散体的介质，同时具有小的晶粒尺寸和高的晶粒密度。 在种子层的沉积期间可以在介质中使用双种子层设计和衬底偏置电压。 在一些实施方案中，由于具有大原子尺寸的元素的高含量，第一籽晶层是无定形材料。 在第二晶种层沉积期间施加衬底偏压可能减小晶粒尺寸并且可能缩窄c轴分散。
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