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1. 发明授权

US08673466B2 CoPtCr-based bit patterned magnetic media 有权
标题翻译：基于CoPtCr的位图形磁介质
公开(公告)号：US08673466B2
公开(公告)日：2014-03-18
申请号：US11525958
申请日：2006-09-25
申请人： Dieter K. Weller , Hans J. Richter , Samuel D. Harkness, IV , Erol Girt
发明人： Dieter K. Weller , Hans J. Richter , Samuel D. Harkness, IV , Erol Girt
IPC分类号： G11B5/66
CPC分类号： G11B5/656 , G11B5/667 , G11B5/732 , G11B5/855
摘要： A bit patterned magnetic recording medium comprises a substrate having a surface, and a plurality of spaced apart magnetic elements on the surface, each element constituting a discrete magnetic domain or bit of the same structure and comprised of a stack of thin film layers including in order from the substrate surface: a seed layer; and a perpendicular magnetic recording layer in contact with a surface of the seed layer and comprising a Co 1-x-yPtxCry alloy material, where 0.05≦x≦0.35 and 0≦y≦0.15. The Co1-x-yPtxCry alloy material has a first order magnetic anisotropy constant K1 up to about 2×107 erg/cm3, a saturation magnetization Ms up to about 1200 emu/cm3, an anisotropy field HK=2K1/Ms up to about 35 kOe, a hexagonal (0001) crystal structure with c-axis perpendicular to a surface thereof, and an X-Ray diffraction (XRD) rocking curve with a full width at half maximum (FWHM) of ˜5° or less.
摘要翻译：位图形磁记录介质包括具有表面的基板和表面上的多个间隔开的磁性元件，每个元件构成相同结构的离散磁畴或位，并且包括一层薄层，从基底表面：种子层; 以及与种子层的表面接触并包括Co 1-x-yPt x Cry合金材料的垂直磁记录层，其中0.05≤x≤0.35和0≤y≤0.15。 Co1-x-yPtxCry合金材料具有高达约2×107erg / cm3的一阶磁各向异性常数K1，高达约1200emu / cm3的饱和磁化强度Ms，高达约35的各向异性磁场HK = 2K1 / Ms kOe，具有垂直于其表面的c轴的六边形（0001）晶体结构，以及具有约5°或更小的全半宽度（FWHM）的X射线衍射（XRD）摇摆曲线。

2. 发明申请

US20080075978A1 CoPtCr-based bit patterned magnetic media 有权
标题翻译：基于CoPtCr的位图形磁介质
公开(公告)号：US20080075978A1
公开(公告)日：2008-03-27
申请号：US11525958
申请日：2006-09-25
申请人： Dieter K. Weller , Hans J. Richter , Samuel D. Harkness , Erol Girt
发明人： Dieter K. Weller , Hans J. Richter , Samuel D. Harkness , Erol Girt
IPC分类号： G11B5/64 , G11B5/66
CPC分类号： G11B5/656 , G11B5/667 , G11B5/732 , G11B5/855
摘要： A bit patterned magnetic recording medium comprises a substrate having a surface, and a plurality of spaced apart magnetic elements on the surface, each element constituting a discrete magnetic domain or bit of the same structure and comprised of a stack of thin film layers including in order from the substrate surface: a seed layer; and a perpendicular magnetic recording layer in contact with a surface of the seed layer and comprising a Co1-x-yPtxCry alloy material, where 0.05≦x≦0.35 and 0≦y≦0.15. The Co1-x-yPtxCry alloy material has a first order magnetic anisotropy constant K, up to about 2×107 erg/cm3, a saturation magnetization Ms up to about 1200 emu/cm3, an anisotropy field HK=2K1/Ms up to about 35 kOe, a hexagonal (0001) crystal structure with c-axis perpendicular to a surface thereof, and an X-Ray diffraction (XRD) rocking curve with a full width at half maximum (FWHM) of ˜5° or less.
摘要翻译：有位图案化的磁记录介质包括具有表面的衬底和表面上的多个间隔开的磁性元件，每个元件构成相同结构的离散磁畴或位，并且由一层薄膜层组成，包括顺序从基底表面：种子层; 以及与籽晶层的表面接触并且包括Co 1-xy Pt 3 x Cr Cr合金材料的垂直磁记录层，其中0.05 <= x <= 0.35且0 <= y <= 0.15。合金材料具有一级磁各向异性常数K，高达约2×10 7Ω/ / SUP> erg / cm 3，饱和磁化强度M s高达约1200emu / cm 3，各向异性场H < 具有C轴垂直于其表面的六边形（0001）晶体结构，并且至少约为35kOe， X射线衍射（XRD）摇摆曲线半峰全宽（FWHM）为〜5°以下。

3. 发明申请

US20100165508A1 MAGNETIC LAYERING FOR BIT-PATTERNED MEDIA 有权
标题翻译：用于位图描绘的磁性层
公开(公告)号：US20100165508A1
公开(公告)日：2010-07-01
申请号：US12347141
申请日：2008-12-31
申请人： Erol Girt , Dieter K. Weller , Alexander Y. Dobin , Bogdan F. Valcu , Thomas F. Ambrose , Yingguo Peng , Yukiko A. Kubota , Abebe Hailu
发明人： Erol Girt , Dieter K. Weller , Alexander Y. Dobin , Bogdan F. Valcu , Thomas F. Ambrose , Yingguo Peng , Yukiko A. Kubota , Abebe Hailu
IPC分类号： G11B5/82
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743
摘要： A perpendicular magnetic recording layer of a magnetic recording medium includes a plurality of bit-patterned magnetic islands, wherein each of the plurality of islands overlay a soft magnetic under-layer. Each of the magnetic islands includes a first magnetic sub-layer adjacent a second magnetic sub-layer, wherein the first sub-layer has a relatively high magnetic anisotropy that is greater than a magnetic anisotropy of the second sub-layer. The magnetic recording layer further includes a third sub-layer, which extends to connect each of the plurality of islands. The third sub-layer may have a magnetic anisotropy that is less than that of the second sub-layer of each of the magnetic islands and/or may serve as an interlayer, extending between the first sub-layer and the soft magnetic under-layer of the recording medium, and having a structure to help to produce the greater anisotropy first magnetic sub-layer.
摘要翻译：磁记录介质的垂直磁记录层包括多个位图形磁岛，其中多个岛中的每一个覆盖软磁底层。每个磁岛包括与第二磁性子层相邻的第一磁性子层，其中第一子层具有大于第二子层的磁各向异性的相对高的磁各向异性。磁记录层还包括延伸以连接多个岛中的每一个的第三子层。第三子层可以具有小于每个磁岛的第二子层的磁各向异性和/或可以用作在第一子层和软磁性底层之间延伸的中间层并且具有有助于产生更大的各向异性的第一磁性子层的结构。

4. 发明授权

US09311948B2 Magnetic layering for bit-patterned stack 有权
标题翻译：位图案堆叠的磁层
公开(公告)号：US09311948B2
公开(公告)日：2016-04-12
申请号：US12347141
申请日：2008-12-31
申请人： Erol Girt , Dieter K. Weller , Alexander Y. Dobin , Bogdan F. Valcu , Thomas F. Ambrose , Yingguo Peng , Yukiko A. Kubota , Abebe Hailu
发明人： Erol Girt , Dieter K. Weller , Alexander Y. Dobin , Bogdan F. Valcu , Thomas F. Ambrose , Yingguo Peng , Yukiko A. Kubota , Abebe Hailu
IPC分类号： G11B5/66 , G11B5/82 , B82Y10/00 , G11B5/74
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743
摘要： A perpendicular magnetic recording layer of a magnetic recording medium includes a plurality of bit-patterned magnetic islands, wherein each of the plurality of islands overlay a soft magnetic under-layer. Each of the magnetic islands includes a first magnetic sub-layer adjacent a second magnetic sub-layer, wherein the first sub-layer has a relatively high magnetic anisotropy that is greater than a magnetic anisotropy of the second sub-layer. The magnetic recording layer further includes a third sub-layer, which extends to connect each of the plurality of islands. The third sub-layer may have a magnetic anisotropy that is less than that of the second sub-layer of each of the magnetic islands and/or may serve as an interlayer, extending between the first sub-layer and the soft magnetic under-layer of the recording medium, and having a structure to help to produce the greater anisotropy first magnetic sub-layer.
摘要翻译：磁记录介质的垂直磁记录层包括多个位图形磁岛，其中多个岛中的每一个覆盖软磁底层。每个磁岛包括与第二磁性子层相邻的第一磁性子层，其中第一子层具有大于第二子层的磁各向异性的相对高的磁各向异性。磁记录层还包括延伸以连接多个岛中的每一个的第三子层。第三子层可以具有小于每个磁岛的第二子层的磁各向异性和/或可以用作在第一子层和软磁性底层之间延伸的中间层并且具有有助于产生更大的各向异性的第一磁性子层的结构。

5. 发明授权

US09040180B2 Perpendicular magnetic recording disk with multiple magnetic layers and intermediate dual nucleation films for control of grain size 有权
标题翻译：具有多个磁性层的垂直磁记录盘和用于控制晶粒尺寸的中间双核成膜
公开(公告)号：US09040180B2
公开(公告)日：2015-05-26
申请号：US13156272
申请日：2011-06-08
申请人： Ernesto E. Marinero , Dieter K. Weller , Brian R. York
发明人： Ernesto E. Marinero , Dieter K. Weller , Brian R. York
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/65 , G11B5/7325 , G11B5/82
摘要： A perpendicular magnetic recording disk has a graded-anisotropy recording layer (RL) formed of at least two ferromagnetically exchange coupled CoPtCr-oxide magnetic layers (MAG1 and MAG2) with two nucleation films (NF1 and NF2) between the magnetic layers. NF1 is a metal film, preferably Ru or a Ru-based alloy like RuCr, sputter deposited on MAG1 at low pressure to a thickness between about 0.1-1.5 nm. NF2 is a metal oxide film, preferably an oxide of Ta, sputter deposited on NF1 at high pressure to a thickness between about 0.2-1.0 nm. MAG2 is sputter deposited over NF2. NF1 and NF2 provide a significant reduction in average grain size in the RL from a graded-anisotropy RL without nucleation films between MAG1 and MAG2, while also assuring that MAG1 and MAG2 are strongly exchange coupled.
摘要翻译：垂直磁记录盘具有由至少两个铁磁交换的CoPtCr-氧化物磁性层（MAG1和MAG2）与磁性层之间的两个成核膜（NF1和NF2）形成的渐变各向异性记录层（RL）。 NF1是金属膜，优选Ru或Ru基Ru合金，在低压下溅射沉积在MAG1上，厚度在约0.1-1.5nm之间。 NF2是金属氧化物膜，优选Ta的氧化物，在高压下溅射沉积在NF1上，厚度在约0.2-1.0nm之间。 MAG2溅射沉积在NF2上。 NF1和NF2从MAG1和MAG2之间没有成核膜的梯度各向异性RL提供RL中的平均晶粒尺寸的显着降低，同时还确保MAG1和MAG2强烈交换耦合。

6. 发明授权

US08399051B1 Method for making a patterned perpendicular magnetic recording disk having a FePt or CoPt chemically ordered recording layer 有权
标题翻译：制造具有FePt或CoPt化学有序记录层的图案化垂直磁记录盘的方法
公开(公告)号：US08399051B1
公开(公告)日：2013-03-19
申请号：US13248086
申请日：2011-09-29
申请人： Olav Hellwig , Jeffrey S. Lille , Andrew Thomas McCallum , Oleksandr Mosendz , Dieter K. Weller
发明人： Olav Hellwig , Jeffrey S. Lille , Andrew Thomas McCallum , Oleksandr Mosendz , Dieter K. Weller
IPC分类号： B05D5/12
CPC分类号： G11B5/855
摘要： A method for making a bit-patterned-media (BPM) magnetic recording disk includes depositing a FePt (or CoPt) alloy recording layer, and then depositing a sealing layer on the FePt layer before high-temperature annealing. The high-temperature annealing causes the FePt to become substantially chemically-ordered in the L10 phase. After annealing, the sealing layer is removed. The sealing layer prevents nanoclustering and agglomeration of the FePt material at the surface of the FePt layer and the sealing layer, which would result in undesirable high surface roughness of the FePt, making patterning of the FePt layer difficult. The FePt layer can be patterned into the discrete islands for the BPM disk either before deposition of the sealing layer or after deposition and removal of the sealing layer. After patterning and removal of the sealing layer, the disk protective overcoat is deposited over the discrete data islands.
摘要翻译：一种制造位图形介质（BPM）磁记录盘的方法包括沉积FePt（或CoPt）合金记录层，然后在高温退火之前在FePt层上沉积密封层。高温退火使FePt在L10相中变得基本化学排序。退火后，去除密封层。密封层防止FePt材料在FePt层和密封层的表面的纳米聚集和聚集，这将导致FePt的不希望的高表面粗糙度，使得FePt层的图案化变得困难。在沉积密封层之前或在沉积和去除密封层之后，FePt层可以被图案化成用于BPM盘的离散岛。在图案化和去除密封层之后，盘保护外涂层沉积在离散的数据岛上。

7. 发明授权

US08081542B1 Thermally-assisted recording (TAR) disk drive with patterned multilevel media and laser with power modulation 有权
标题翻译：热辅助记录（TAR）磁盘驱动器，带有图形化多媒体和带功率调制的激光器
公开(公告)号：US08081542B1
公开(公告)日：2011-12-20
申请号：US12942206
申请日：2010-11-09
申请人： Michael Konrad Grobis , Barry Cushing Stipe , Dieter K. Weller , Gabriel Zeltzer
发明人： Michael Konrad Grobis , Barry Cushing Stipe , Dieter K. Weller , Gabriel Zeltzer
IPC分类号： G11B7/085 , G11B5/02
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/6088 , G11B5/653 , G11B5/746 , G11B5/82 , G11B5/855 , G11B2005/0021
摘要： A thermally-assisted recording (TAR) patterned-media magnetic recording disk drive has a perpendicular patterned-media disk with multilevel data islands and a laser capable of supplying multiple levels of output power to a near-field transducer (NFT). If there are only two cells in each island, each island is formed of an upper cell of magnetic material with a coercivity HC1 and a Curie temperature TC1, a lower cell of magnetic material with a coercivity HC2 and a Curie temperature TC2 greater than TC1, and a nonmagnetic spacer layer between the two cells. Each cell is formed of high-anisotropy material so as to have an anisotropy field greater than the magnetic write field. The TAR laser is capable of supplying at least two levels of output power to the NFT to allow the islands to be heated to two distinct temperatures so that the two cells in an island can be written so as to have either the same or opposite magnetizations.
摘要翻译：热辅助记录（TAR）图案介质磁记录盘驱动器具有具有多级数据岛的垂直图案化媒体盘和能够向近场换能器（NFT）提供多级输出功率的激光器。如果每个岛中只有两个电池，每个岛由具有矫顽力HC1和居里温度TC1的磁性材料的上电池形成，具有矫顽力HC2和居里温度TC2大于TC1的磁性材料的下电池，和两个电池之间的非磁性间隔层。每个单元由高各向异性材料形成，以具有大于磁写入场的各向异性场。 TAR激光器能够向NFT提供至少两个级别的输出功率，以允许岛被加热到两个不同的温度，使得岛中的两个单元可被写入以具有相同或相反的磁化。

8. 发明申请

US20110268993A1 SILICON/GOLD SEED STRUCTURE FOR CRYSTALLINE ALIGNMENT IN A FILM STACK 有权
标题翻译：硅胶/黄金结晶在电影胶卷中的结晶对齐
公开(公告)号：US20110268993A1
公开(公告)日：2011-11-03
申请号：US12772179
申请日：2010-05-01
申请人： Olav Hellwig , Dieter K. Weller
发明人： Olav Hellwig , Dieter K. Weller
IPC分类号： G11B5/62 , G11B5/66 , G11B5/738
CPC分类号： G11B5/732 , G11B5/66 , G11B5/667 , G11B5/7325 , G11B5/855 , Y10T428/12076 , Y10T428/12465 , Y10T428/12472 , Y10T428/12674
摘要： A silicon/gold (Si/Au) bilayer seed structure is located in a film stack between an amorphous or crystalline lower layer and an upper layer with a well-defined crystalline structure. The seed structure includes a Si layer on the generally flat surface of the lower layer and a Au layer on the Si layer. The Si/Au interface initiates the growth of the Au layer with a face-centered-cubic (fcc) crystalline structure with the (111) plane oriented in-plane. The upper layer grown on the Au layer has a fcc or hexagonal-close-packed (hcp) crystalline structure. If the upper layer is a fcc material its [111] direction is oriented substantially perpendicular to the (111) plane of the Au layer and if the upper layer is a hcp material, its c-axis is oriented substantially perpendicular to the (111) plane of the Au layer.
摘要翻译：硅/金（Si / Au）双层种子结构位于非晶或结晶下层与具有明确定义的结晶结构的上层之间的膜叠层中。种子结构包括在下层的大致平坦表面上的Si层和Si层上的Au层。 Si / Au界面以（111）面定向在平面内的面心立方（fcc）晶体结构引发Au层的生长。在Au层上生长的上层具有fcc或六方密堆积（hcp）晶体结构。如果上层是fcc材料，其[111]方向定向成基本上垂直于Au层的（111）面，并且如果上层是hcp材料，则其c轴基本垂直于（111）面定向， Au层的平面。

9. 发明申请

US20110044147A1 WRITEALE OPTICAL RECORDING OF MULTI-LEVEL ORIENTED NANO-STRUCTURE DISCS 有权
标题翻译：多层面的纳米结构光盘的写入光学记录
公开(公告)号：US20110044147A1
公开(公告)日：2011-02-24
申请号：US12938233
申请日：2010-11-02
申请人： Duane C. Karns , Dieter K. Weller , William A. Challener , Edward Gage , David S. Kuo , Neil Deeman , Shih-Fu Lee , Koichi Wago
发明人： Duane C. Karns , Dieter K. Weller , William A. Challener , Edward Gage , David S. Kuo , Neil Deeman , Shih-Fu Lee , Koichi Wago
IPC分类号： G11B7/20
CPC分类号： G11B7/24088 , G11B7/0045 , G11B7/08547 , G11B7/1362
摘要： A method of performing writable optical recording of a medium to form multilevel oriented nano-structures therein, comprises steps of providing a disc-shaped, writable recording medium having a planar surface; and encoding data/information in the medium by forming a plurality of multilevel nano-structured pits in the surface by scanning with a focused spot of optical energy to form at least one data track therein, including scanning the optical spot in a cross-track direction while rotating the disc about a central axis.
摘要翻译：一种执行介质的可写光学记录以在其中形成多层次取向的纳米结构的方法，包括提供具有平坦表面的盘形可写记录介质的步骤; 以及通过用聚焦的光能点扫描在表面中形成多个多层纳米结构的凹坑来形成介质中的数据/信息，以在其中形成至少一个数据轨迹，包括沿横向方向扫描光点同时围绕中心轴旋转盘。

10. 发明授权

US07158346B2 Heat assisted magnetic recording film including superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix 有权
标题翻译：包括分散在反铁磁性或亚铁磁矩阵中的超顺磁纳米颗粒的热辅助磁记录膜
公开(公告)号：US07158346B2
公开(公告)日：2007-01-02
申请号：US10745205
申请日：2003-12-23
申请人： Bin Liu , Dieter K. Weller
发明人： Bin Liu , Dieter K. Weller
IPC分类号： G11B23/00 , G11B5/82
CPC分类号： G11B5/82 , G11B5/012 , G11B2005/0021 , Y10S977/778
摘要： Heat assisted magnetic recording systems with composite recording films are disclosed. The magnetic recording films include superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix. The matrix provides antiferromagnetic coupling with the superparamagnetic nanoparticles, and minimizes exchange interactions between adjacent nanoparticles.
摘要翻译：公开了具有复合记录膜的热辅助磁记录系统。磁记录膜包括分散在反铁磁性或亚铁磁性基质中的超顺磁性纳米粒子。该矩阵提供与超顺磁性纳米粒子的反铁磁耦合，并最小化相邻纳米粒子之间的交换相互作用。

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