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1.发明授权Apparatus including a perpendicular magnetic recording layer having a convex magnetic anisotropy profile 有权包括具有凸磁各向异性轮廓的垂直磁记录层的装置公开(公告)号：US09142240B2
公开(公告)日：2015-09-22
申请号：US12847745
申请日：2010-07-30
摘要： An apparatus may include a first magnetic layer, a first exchange break layer formed on the first magnetic layer, a second magnetic layer formed on the first exchange break layer, a second exchange break layer formed on the second magnetic layer, and a third magnetic layer formed on the second exchange break layer. The first magnetic layer has a first magnetic anisotropy energy, Hk1, the second magnetic layer has a second magnetic anisotropy energy, Hk2, and the third magnetic layer has a third magnetic anisotropy energy, Hk3. In some embodiments, Hk1−Hk2 is less than Hk2−Hk3. In some embodiments, the apparatus may be a perpendicular magnetic recording medium.
摘要翻译： 一种装置可以包括第一磁性层，形成在第一磁性层上的第一交换破坏层，形成在第一交换断裂层上的第二磁性层，形成在第二磁性层上的第二交换破坏层，第三磁性层 形成在第二交换断层上。 第一磁性层具有第一磁各向异性能H k1，第二磁性层具有第二磁各向异性能H k2，第三磁性层具有第三磁各向异性能H k3。 在一些实施方案中，Hk1-Hk2小于Hk2-Hk3。 在一些实施例中，该装置可以是垂直磁记录介质。
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2.发明申请APPARATUS INCLUDING A PERPENDICULAR MAGNETIC RECORDING LAYER HAVING A CONVEX MAGNETIC ANISOTROPY PROFILE 有权装置包括一个具有凸起的磁性异相剖面的磁记录层公开(公告)号：US20120026626A1
公开(公告)日：2012-02-02
申请号：US12847745
申请日：2010-07-30
IPC分类号： G11B5/82
摘要： An apparatus may include a first magnetic layer, a first exchange break layer formed on the first magnetic layer, a second magnetic layer formed on the first exchange break layer, a second exchange break layer formed on the second magnetic layer, and a third magnetic layer formed on the second exchange break layer. The first magnetic layer has a first magnetic anisotropy energy, Hk1, the second magnetic layer has a second magnetic anisotropy energy, Hk2, and the third magnetic layer has a third magnetic anisotropy energy, Hk3. In some embodiments, Hk1−Hk2 is less than Hk2−Hk3. In some embodiments, the apparatus may be a perpendicular magnetic recording medium.
摘要翻译： 一种装置可以包括第一磁性层，形成在第一磁性层上的第一交换破坏层，形成在第一交换断裂层上的第二磁性层，形成在第二磁性层上的第二交换破坏层，第三磁性层 形成在第二交换断层上。 第一磁性层具有第一磁各向异性能H k1，第二磁性层具有第二磁各向异性能H k2，第三磁性层具有第三磁各向异性能H k3。 在一些实施方案中，Hk1-Hk2小于Hk2-Hk3。 在一些实施例中，该装置可以是垂直磁记录介质。
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3.发明授权System and method for non-destructive measurement of dynamic coercivity effects 失效用于动态矫顽力影响的非破坏性测量的系统和方法公开(公告)号：US06304081B1
公开(公告)日：2001-10-16
申请号：US09179297
申请日：1998-10-27
申请人： Hans Jürgen Richter
发明人： Hans Jürgen Richter
IPC分类号： G01R3312
CPC分类号： G01R33/1207
摘要： A method for non-destructive measurement of dynamic coercivity is disclosed. In this method, magnetic media is DC erased by applying a forward DC magnetic field to the magnetic media such that the magnetic moments in the magnetic media are substantially aligned. A specified number of reversed magnetic field pulses are then applied to the magnetic media in a direction opposite to the forward DC magnetic field, wherein the intensity of the reversed magnetic field pulses is less than the remanent coercivity of the magnetic media. The broadband medium noise of the magnetic media is measured. The intensity of the reversed magnetic field pulses is then repeatedly and incrementally increased and applied to the write head for the specified number of pulses, the intensity of the reversed magnetic field pulses eventually exceeding the remanent coercivity of the magnetic media. For each intensity level of the reversed magnetic field pulses, the broadband medium noise is again measured. The coercivity of the magnetic media is derived from the reversed magnetic field pulse intensity at which the broadband medium noise is a maximum. The entire process may be repeated for different numbers of pulses in order to measure dynamic coercivity.
摘要翻译： 公开了用于动态矫顽力的非破坏性测量的方法。 在该方法中，通过向磁性介质施加正向DC磁场使得磁性介质被直流擦除，使得磁性介质中的磁矩基本对齐。 然后将指定数量的反向磁场脉冲以与正向直流磁场相反的方向施加到磁性介质，其中反向磁场脉冲的强度小于磁性介质的剩磁矫顽力。 测量磁介质的宽带介质噪声。 反向磁场脉冲的强度然后被重复地递增地增加并且在写入头上施加指定数量的脉冲，反转的磁场脉冲的强度最终超过磁介质的剩磁矫顽力。 对于反向磁场脉冲的每个强度水平，再次测量宽带介质噪声。 磁介质的矫顽力是从宽带介质噪声最大值的反向磁场脉冲强度导出的。 可以针对不同数量的脉冲重复整个过程，以测量动态矫顽力。
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4.发明授权公开(公告)号：US06483299B1
公开(公告)日：2002-11-19
申请号：US09708491
申请日：2000-11-09
IPC分类号： G01R3312
CPC分类号： G11B27/36 , G01R33/1207 , G11B5/00 , G11B33/14 , G11B2005/001 , G11B2220/20
摘要： An apparatus and a method for measuring the magnetic properties of recording media. Particularly, the invention is directed to the measurement of the coercivity of recording media having high coercivity values. The apparatus for measuring the magnetic properties of recording media contains a thermal source to increase the temperature of a selected portion of the recording media, thus temporally decreasing the coercivity of the recording media in the selected portion. Magnetic transitions are induced by applying a magnetic field to the regions of the medium affected by the thermal source. The electromagnet applies an incrementally increasing DC field to the selected portion to generate variable magnetization data.
摘要翻译： 一种用于测量记录介质的磁特性的装置和方法。 特别地，本发明涉及具有高矫顽力值的记录介质的矫顽力的测量。 用于测量记录介质的磁特性的装置包含一个热源，以增加记录介质的选定部分的温度，从而暂时降低所选部分中的记录介质的矫顽力。 通过对受热源影响的介质的区域施加磁场来诱导磁转变。 电磁体对所选择的部分施加递增增加的DC场，以产生可变磁化数据。
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5.发明授权公开(公告)号：US08927852B2
公开(公告)日：2015-01-06
申请号：US12195596
申请日：2008-08-21
IPC分类号： H01L31/00 , H01L31/042 , H01L31/055 , B82Y20/00 , H01L31/0224
CPC分类号： H01L31/055 , B82Y20/00 , H01L31/022466 , Y02E10/50 , Y02E10/52
摘要： A photovoltaic apparatus includes an absorber including a first quantum dot layer having a first plurality of quantum dots of a first quantum dot material in a first matrix material, and an up-converter layer positioned adjacent to the absorber layer, the up-converter layer including a second quantum dot layer having a second plurality of quantum dots of a second quantum dot material and a second matrix material.
摘要翻译： 一种光伏器件包括：吸收体，包括第一量子点层，其具有第一矩阵材料中的第一量子点材料的第一多个量子点;以及与所述吸收体层相邻的上变频器层，所述上变频器层包括 具有第二量子点材料的第二多个量子点和第二基质材料的第二量子点层。
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6.发明授权Hybrid photovoltaic cell using amorphous silicon germanium absorbers with wide bandgap dopant layers and an up-converter 有权使用具有宽带隙掺杂剂层和上变频器的非晶硅锗吸收体的混合光伏电池公开(公告)号：US08093488B2
公开(公告)日：2012-01-10
申请号：US12199855
申请日：2008-08-28
IPC分类号： H01L31/042
CPC分类号： H01L31/02322 , H01L31/022466 , H01L31/022483 , H01L31/077 , Y02E10/50
摘要： A photovoltaic apparatus includes an absorber including a p-layer having a bandgap greater than about 2 eV, an n-layer having a bandgap greater than about 2 eV, and an amorphous SiGe intrinsic layer between the p-layer and the n-layer; a first electrode adjacent to a first side of the absorber; a second electrode adjacent to a second side of the absorber; and an up-converter layer positioned adjacent to the second electrode on an opposite side of the second electrode from the absorber, wherein the up-converter layer includes a plurality of quantum dots of a first material in a matrix of a second material.
摘要翻译： 光伏器件包括：吸收体，包括具有大于约2eV的带隙的p层，具有大于约2eV的带隙的n层;以及位于p层和n层之间的非晶SiGe本征层; 与所述吸收体的第一侧相邻的第一电极; 与所述吸收体的第二侧相邻的第二电极; 以及在所述第二电极与所述吸收体相反的一侧邻近所述第二电极定位的上转换器层，其中所述上转换器层包括第二材料的基质中的第一材料的多个量子点。
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公开(公告)号：US20100266755A1
公开(公告)日：2010-10-21
申请号：US12824102
申请日：2010-06-25
IPC分类号： G11B5/84
摘要： A ferromagnetically coupled magnetic recording medium having a first ferromagnetic layer, a second ferromagnetic layer, and a ferromagnetic coupling layer to ferromagnetically couple the first ferromagnetic layer to the second ferromagnetic layer is used as stable magnetic media with high MrT in high density recording hard drives. The first ferromagnetic layer is the stabilization layer and the second ferromagnetic layer is the main recording layer. The ferromagnetic coupling layer comprises a conductive material having a thickness which produces ferromagnetic coupling between said first ferromagnetic layer and said second ferromagnetic layer via the RKKY interaction.
摘要翻译： 在高密度记录硬盘驱动器中，使用具有第一铁磁层，第二铁磁层和铁磁耦合层的铁磁耦合磁记录介质以将第一铁磁层铁磁耦合到第二铁磁层作为具有高MrT的稳定磁介质。 第一铁磁层是稳定层，第二铁磁层是主记录层。 铁磁耦合层包括具有通过RKKY相互作用在所述第一铁磁层和所述第二铁磁层之间产生铁磁耦合的厚度的导电材料。
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8.发明授权公开(公告)号：US06964819B1
公开(公告)日：2005-11-15
申请号：US10429798
申请日：2003-05-06
CPC分类号： G11B5/66 , G11B5/656 , G11B5/732 , G11B5/7325
摘要： An anti-ferromagnetically coupled (“AFC”) magnetic recording medium with RKKY coupling between spaced-apart magnetic layers comprising a non-magnetic substrate having a surface, and a layer stack atop the substrate surface. The layer stack comprises, in overlying sequence from the substrate surface: a magnetic stabilization layer, a non-magnetic spacer layer, and a main magnetic recording layer the main magnetic recording layer comprises, in overlying sequence from the non-magnetic spacer layer: (i) a top interface layer, (ii) a Cr alloy magnetic layer, and (iii) a top magnetic layer.
摘要翻译： 一种具有RKKY耦合的反磁铁耦合（“AFC”）磁记录介质，其间隔开的磁性层包括具有表面的非磁性基底和层叠在基底表面上方。 层堆叠以从衬底表面的顺序包括：磁稳定层，非磁性间隔层和主磁记录层，主磁记录层以非磁性间隔层的顺序包括：（ i）顶部界面层，（ii）Cr合金磁性层，和（iii）顶部磁性层。
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9.发明授权Compensation technique for measurement of magnetic moment and anisotropy field of perpendicular recording media with soft underlayer 失效用于测量具有软底层的垂直记录介质的磁矩和各向异性场的补偿技术公开(公告)号：US06844724B1
公开(公告)日：2005-01-18
申请号：US10342397
申请日：2003-01-15
申请人： Qingzhi Peng , Hans Jürgen Richter
发明人： Qingzhi Peng , Hans Jürgen Richter
CPC分类号： G11B5/00 , G01R33/12 , G11B5/74 , G11B2005/001 , G11B2005/0029
摘要： A method of measuring the magnetic moment (Mrt) and anisotropy field strength (Hk) of a perpendicular magnetic recording medium comprising a planar-surfaced perpendicular recording layer and a magnetically soft underlayer (SUL) is provided. A compensated magnetic moment (Mrt)comp of the recording layer is determined for a given strength (H) of a generally in-plane magnetic field applied generally to the recording layer. The compensated magnetic moment (Mrt)comp of the recording layer is determined for a plurality of different in-plane applied magnetic field (H) strengths to determine the variation of the compensated magnetic moment (Mrt)comp of the recording layer as a function of the strength (H) of the generally in-plane applied magnetic fields. The remanent magnetic moment (Mrt(0)) at zero (0) field strength (H) and the anisotropy field strength (Hk) is determined from the measured variation of the compensated magnetic moment (Mrt)comp of the recording layer as a function of the strength (H) of the generally in-plane applied magnetic fields.
摘要翻译： 提供了测量包括平面表面垂直记录层和磁软底层（SUL）的垂直磁记录介质的磁矩（Mrt）和各向异性场强（Hk）的方法。 对于通常施加到记录层的大致平面内的磁场的给定强度（H），确定记录层的补偿磁矩（Mrt）组成。 根据多个不同的面内施加磁场（H）强度来确定记录层的补偿磁矩（Mrt）组合，以确定作为记录层的补偿磁矩（Mrt）comp的变化，作为 通常在平面内施加的磁场的强度（H）。 从零（0）场强（H）和各向异性场强（Hk）的剩余磁矩（Mrt（0））由记录层的补偿磁矩（Mrt）组成的测量变化确定为函数 的通常在平面内施加的磁场的强度（H）。
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10.发明授权Stabilized recording media including coupled discontinuous and continuous magnetic layers 有权稳定的记录介质包括耦合不连续和连续的磁性层公开(公告)号：US06777112B1
公开(公告)日：2004-08-17
申请号：US09971693
申请日：2001-10-09
IPC分类号： G17B566
CPC分类号： G11B5/66 , G11B5/732 , G11B5/7325 , G11B5/855 , Y10S428/90 , Y10T428/24942 , Y10T428/265
摘要： A magnetic recording medium having increased thermal stability and signal-to-medium noise ratio (SMNR), comprising a layer stack including, in sequence: (a) a continuous ferromagnetic layer; (b) a non-magnetic spacer layer; and (c) a discontinuous ferromagnetic layer; wherein the continuous ferromagnetic layer (a) and the discontinuous ferromagnetic layer (c) are ferromagnetically or anti-ferromagnetically coupled together across the non-magnetic spacer layer.
摘要翻译： 一种具有增加的热稳定性和信号与中等噪声比（SMNR）的磁记录介质，包括层叠，其顺序包括：（a）连续铁磁层;（b）非磁性间隔层; 和（c）不连续的铁磁层;其中所述连续铁磁层（a）和所述不连续铁磁层（c）在非磁性间隔层上铁磁或反铁磁耦合在一起。
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