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1.发明授权公开(公告)号：US07601443B2
公开(公告)日：2009-10-13
申请号：US11259085
申请日：2005-10-27
申请人： Chee-kheng Lim , Yong-su Kim , Byung-kyu Lee , Hoon-sang Oh , Tae-hyo Lee
发明人： Chee-kheng Lim , Yong-su Kim , Byung-kyu Lee , Hoon-sang Oh , Tae-hyo Lee
摘要： A recording medium including a perpendicular magnetic recording layer and a laminated SUL formed on a substrate is provided. The SUL includes an antiferromagnetic layer interposed between laminated structures including a magnetic layer, a non-magnetic layer and a magnetic layer. The layers may each have a thickness of 20 nm or less and the layers below the antiferromagnetic layer may be thinner than the layers on the antiferromagnetic layer. The laminated structures formed on and below the antiferromagnetic layer have unidirectional magnetic anisotropies set in the opposite radial direction to each other by an exchange bias. As a result, media magnetic domain noise can be diminished.
摘要翻译： 提供了包括在基板上形成的垂直磁记录层和层叠SUL的记录介质。 SUL包括介于包括磁性层，非磁性层和磁性层的层压结构之间的反铁磁性层。 这些层可以各自具有20nm或更小的厚度，并且反铁磁层下面的层可以比反铁磁性层上的层更薄。 形成在反铁磁性层上和下方的叠层结构具有通过交换偏压彼此相反的径向方向设置的单向磁各向异性。 结果，媒体磁畴噪声可以减弱。
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公开(公告)号：US20060093865A1
公开(公告)日：2006-05-04
申请号：US11259085
申请日：2005-10-27
申请人： Chee-kheng Lim , Yong-su Kim , Byung-kyu Lee , Hoon-sang Oh , Tae-hyo Lee
发明人： Chee-kheng Lim , Yong-su Kim , Byung-kyu Lee , Hoon-sang Oh , Tae-hyo Lee
IPC分类号： G11B5/66
摘要： A recording medium including a perpendicular magnetic recording layer and a laminated SUL formed on a substrate is provided. The SUL includes an antiferromagnetic layer interposed between laminated structures including a magnetic layer, a non-magnetic layer and a magnetic layer. The layers may each have a thickness of 20 nm or less and the layers below the antiferromagnetic layer may be thinner than the layers on the antiferromagnetic layer. The laminated structures formed on and below the antiferromagnetic layer have unidirectional magnetic anisotropies set in the opposite radial direction to each other by an exchange bias. As a result, media magnetic domain noise can be diminished.
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3.发明申请公开(公告)号：US20050186453A1
公开(公告)日：2005-08-25
申请号：US11065152
申请日：2005-02-25
申请人： Hoon-sang Oh , Tae-hyo Lee , Byung-kyu Lee
发明人： Hoon-sang Oh , Tae-hyo Lee , Byung-kyu Lee
CPC分类号： G11B5/8404 , G11B5/653 , G11B5/656 , G11B5/667 , G11B5/7325 , G11B5/7379
摘要： Provided are a perpendicular magnetic recording medium having an underlayer between a substrate and a recording layer and a method of manufacturing the perpendicular magnetic recording medium. The method of manufacturing a perpendicular magnetic recording medium includes forming the underlayer of a plural-layer structure by at least 2 step processes under different deposition conditions. When using the underlayer formed by a 2-step manufacturing method, superior crystalline and high perpendicular magnetic anisotropy can be secured due to the lower underlayer, and the perpendicular magnetic recording layer having a high perpendicular coercivity and a small magnetic domain can be formed due to the underlayer beneath the recording layer.
摘要翻译： 提供了一种在基板和记录层之间具有底层的垂直磁记录介质以及垂直磁记录介质的制造方法。 制造垂直磁记录介质的方法包括在不同沉积条件下通过至少两步工艺形成多层结构的底层。 当使用通过2步制造方法形成的底层时，由于较低的底层可以确保优异的晶体和高垂直磁各向异性，并且由于可以形成具有高垂直矫顽力和小磁畴的垂直磁记录层 记录层下面的底层。
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4.发明申请公开(公告)号：US20080085429A1
公开(公告)日：2008-04-10
申请号：US11869811
申请日：2007-10-10
申请人： Hoon-sang Oh , Tae-hyo Lee , Byung-kyu Lee
发明人： Hoon-sang Oh , Tae-hyo Lee , Byung-kyu Lee
IPC分类号： G11B5/00
CPC分类号： G11B5/8404 , G11B5/653 , G11B5/656 , G11B5/667 , G11B5/7325 , G11B5/7379
摘要： Provided are a perpendicular magnetic recording medium having an underlayer between a substrate and a recording layer and a method of manufacturing the perpendicular magnetic recording medium. The method of manufacturing a perpendicular magnetic recording medium includes forming the underlayer of a plural-layer structure by at least 2 step processes under different deposition conditions. When using the underlayer formed by a 2-step manufacturing method, superior crystalline and high perpendicular magnetic anisotropy can be secured due to the lower underlayer, and the perpendicular magnetic recording layer having a high perpendicular coercivity and a small magnetic domain can be formed due to the underlayer beneath the recording layer.
摘要翻译： 提供了一种在基板和记录层之间具有底层的垂直磁记录介质以及垂直磁记录介质的制造方法。 制造垂直磁记录介质的方法包括在不同沉积条件下通过至少两步工艺形成多层结构的底层。 当使用通过2步制造方法形成的底层时，由于较低的底层可以确保优异的晶体和高垂直磁各向异性，并且由于可以形成具有高垂直矫顽力和小磁畴的垂直磁记录层 记录层下面的底层。
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公开(公告)号：US20050153168A1
公开(公告)日：2005-07-14
申请号：US11030892
申请日：2005-01-10
申请人： Hoon-sang Oh , Tae-hyo Lee
发明人： Hoon-sang Oh , Tae-hyo Lee
CPC分类号： G11B5/667 , G11B5/656 , G11B5/7325 , Y10T428/265
摘要： A perpendicular magnetic recording medium including a Co-based magnetic recording layer, a substrate supporting the magnetic recording layer, and a perpendicular orientation underlayer placed between the magnetic recording layer and the substrate. The perpendicular orientation underlayer is composed of a Ru—Co alloy with 1-65 at. % of Co. The perpendicular magnetic recording medium can achieve good crystallinity and good magnetic characteristics by having the perpendicular orientation underlayer with a small lattice mismatch for the recording layer.
摘要翻译： 一种垂直磁记录介质，包括Co基磁记录层，支撑磁记录层的衬底以及放置在磁记录层和衬底之间的垂直取向底层。 垂直取向底层由具有1-65at的Ru-Co合金组成。 Co.的垂直磁记录介质可以通过使记录层具有小的晶格失配的垂直取向底层而获得良好的结晶度和良好的磁特性。
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