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1.发明申请Perpendicular magnetic recording medium with multiple exchange-coupled magnetic layers having substantially similar anisotropy fields 有权具有多个具有基本相似的各向异性场的交换耦合磁性层的垂直磁记录介质公开(公告)号：US20070212574A1
公开(公告)日：2007-09-13
申请号：US11372295
申请日：2006-03-09
申请人： Andreas Berger , Hoa Do , Eric Fullerton , Yoshihiro Ikeda , Byron Lengsfield , Natacha Supper
发明人： Andreas Berger , Hoa Do , Eric Fullerton , Yoshihiro Ikeda , Byron Lengsfield , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/66
摘要： A perpendicular magnetic recording medium has an “exchange-spring” type magnetic recording layer (RL) formed of two ferromagnetic layers with substantially similar anisotropy fields that are ferromagnetically exchange-coupled by a nonmagnetic or weakly ferromagnetic coupling layer. Because the write head produces a larger magnetic field and larger field gradient at the upper portion of the RL, while the field strength decreases further inside the RL, the upper ferromagnetic layer can have a high anisotropy field. The high field and field gradient near the top of the RL, where the upper ferromagnetic layer is located, reverses the magnetization of the upper ferromagnetic layer, which then assists in the magnetization reversal of the lower ferromagnetic layer. Because both ferromagnetic layers in this exchange-spring type RL have a high anisotropy field, the thermal stability of the medium is not compromised. The medium shows improved writability, i.e., a low switching field, as well as lower intrinsic media noise, over a medium with a conventional single-layer RL.
摘要翻译： 垂直磁记录介质具有由具有基本相似的各向异性场的两个铁磁层形成的“交换弹簧”型磁记录层（RL），其通过非磁性或弱铁磁耦合层进行铁磁交换耦合。 由于写头在RL的上部产生较大的磁场和较大的场梯度，而在RL内的场强进一步降低，所以上铁磁层可以具有高的各向异性场。 在RL的顶部附近的高场磁场梯度，其中上铁磁层位于其上，反转上铁磁层的磁化，其随后有助于下铁磁层的磁化反转。 由于这种交换弹簧型RL中的两个铁磁层具有高各向异性场，所以介质的热稳定性不受影响。 在具有常规单层RL的介质上，介质显示改进的可写性，即低切换场，以及较低的固有介质噪声。
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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
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。
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公开(公告)号：US20060177704A1
公开(公告)日：2006-08-10
申请号：US11231516
申请日：2005-09-21
申请人： Andreas Berger , Eric Fullerton , Hoa Do , Natacha Supper
发明人： Andreas Berger , Eric Fullerton , Hoa Do , Natacha Supper
IPC分类号： G11B5/66
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。
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公开(公告)号：US20100128391A1
公开(公告)日：2010-05-27
申请号：US12691603
申请日：2010-01-21
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。
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公开(公告)号：US07687157B2
公开(公告)日：2010-03-30
申请号：US11231516
申请日：2005-09-21
IPC分类号： G11B5/66
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。
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公开(公告)号：US07989096B2
公开(公告)日：2011-08-02
申请号：US12691603
申请日：2010-01-21
IPC分类号： G11B5/66
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。
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公开(公告)号：US20060166039A1
公开(公告)日：2006-07-27
申请号：US11044283
申请日：2005-01-26
申请人： Andreas Berger , Hoa Do
发明人： Andreas Berger , Hoa Do
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/66
摘要： A perpendicular magnetic recording medium, such as a perpendicular magnetic recording disk, has a magnetic “torque” layer (MTL) that exerts a magnetic torque onto the perpendicular magnetic recording layer (RL) in the presence of the applied perpendicular write field. The MTL thus acts as a write assist layer in reversing the magnetization of the RL. A coupling layer (CL) is located between the MTL and the RL and provides the appropriate ferromagnetic coupling strength between the MTL and the RL.
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8.发明申请公开(公告)号：US20070020486A1
公开(公告)日：2007-01-25
申请号：US11185659
申请日：2005-07-19
申请人： Andreas Berger , Eric Fullerton
发明人： Andreas Berger , Eric Fullerton
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/656 , G11B5/667 , G11B5/732 , G11B5/7325
摘要： A perpendicular magnetic recording medium includes a metamagnetic antiferromagnetically-coupled (AFC) layer between the recording layer (RL) and the soft magnetically permeable underlayer (SUL). The metamagnetic AFC layer has essentially no net magnetic moment in the absence of a magnetic field, but is highly ferromagnetic in the presence of a magnetic field above a threshold field. Thus the metamagnetic AFC layer does not contribute to the readback signal during reading, but channels the write field to the SUL during writing because the threshold field is selected to be below the write field. An exchange-break layer EBL is located between the metamagnetic AFC layer and the RL. The metamagnetic AFC layer contains films with a crystalline structure suitable as a growth template for the EBL and RL, so the metamagnetic AFC layer also functions as part of an “effective EBL”, thereby allowing the actual EBL to be made as thin as possible.
摘要翻译： 垂直磁记录介质包括在记录层（RL）和软磁性可渗透底层（SUL）之间的超磁性反铁磁耦合（AFC）层。 在没有磁场的情况下，超磁性AFC层基本上没有净磁矩，但是在存在超过阈值场的磁场的情况下是高铁磁性的。 因此，偏磁AFC层在读取期间不对回读信号有贡献，而是在写入期间将写入场指向SUL，因为阈值域被选择为低于写入场。 交换断层EBL位于超磁性AFC层和RL之间。 超磁性AFC层含有具有适合于EBL和RL的生长模板的晶体结构的膜，因此，反磁性AFC层也起到“有效EBL”的一部分的作用，从而使实际的EBL尽可能薄。
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9.发明申请PERPENDICULAR RECORDING MAGNETIC MEDIA WITH IMBALANCED MAGNETIC MOMENT MULTILAYER CAP STRUCTURE 审中-公开具有不平衡磁性多层结构的全磁记录磁介质公开(公告)号：US20090080110A1
公开(公告)日：2009-03-26
申请号：US11860441
申请日：2007-09-24
申请人： Andreas Berger , Yoshihiro Ikeda , Kentaro Takano
发明人： Andreas Berger , Yoshihiro Ikeda , Kentaro Takano
IPC分类号： G11B5/127
摘要： A perpendicular magnetic recording media is provided having an imbalanced magnetic moment multilayer cap. The perpendicular magnetic recording media comprises a granular layer, and a multilayer cap structure exchange coupled to the granular layer. The multilayer cap structure includes upper and lower magnetic layers separated by a non-magnetic layer, where the upper magnetic layer has a magnetic moment greater than the lower magnetic layer. When an external field is applied to the recording media, a larger moment torque is triggered at the surface, and more efficient switching is facilitated. The upper magnetic layer may have a higher magnetic moment than the lower magnetic layer if the upper magnetic layer comprises a larger magnetic moment material than the lower magnetic layer. The upper magnetic layer may also have a higher magnetic moment than the lower magnetic layer if the upper magnetic layer has a greater thickness than the lower magnetic layer.
摘要翻译： 提供具有不平衡磁矩多层盖的垂直磁记录介质。 垂直磁记录介质包括粒状层，以及与颗粒层耦合的多层帽结构交换。 多层盖结构包括由非磁性层分离的上磁层和下磁层，其中上磁层的磁矩大于下磁层。 当向记录介质施加外部场时，在表面触发更大的力矩，并且更有效地切换。 如果上部磁性层包含比下部磁性层更大的磁矩材料，则上磁性层的磁矩可能比下部磁性层高。 如果上部磁性层的厚度大于下部磁性层的厚度，则上部磁性层也可以具有比下部磁性层更高的磁矩。
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公开(公告)号：US20180324885A1
公开(公告)日：2018-11-08
申请号：US16035242
申请日：2018-07-13
CPC分类号： H04W76/15 , H04L25/14 , H04W72/0453
摘要： Provided are embodiments of a mobile communication terminal with a data generation unit arranged for generating a data stream, a data serialization unit arranged for segmenting the data stream into at least two distinct data packets, and a channel broker unit. The channel broker unit is connected to the serialization unit to receive the at least two data packets and to select for each of the data packets a bearer channel out of at least two different bearer channels.
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