公开(公告)号：US09520230B2

公开(公告)日：2016-12-13

申请号：US13824572

申请日：2011-05-13

申请人： Noritsugu Sakuma ,  Hidefumi Kishimoto ,  Akira Kato ,  Tetsuya Shoji ,  Dominique Givord ,  Nora Dempsey ,  Thomas George Woodcock ,  Oliver Gutfleisch ,  Gino Hrkac ,  Thomas Schrefl

发明人： Noritsugu Sakuma ,  Hidefumi Kishimoto ,  Akira Kato ,  Tetsuya Shoji ,  Dominique Givord ,  Nora Dempsey ,  Thomas George Woodcock ,  Oliver Gutfleisch ,  Gino Hrkac ,  Thomas Schrefl

IPC分类号： H01F41/00 ,  H01F41/02 ,  H01F41/32 ,  C22C38/00 ,  C22C38/06 ,  C22C38/16 ,  H01F1/01 ,  H01F1/057 ,  H01F10/12 ,  B22F3/24

CPC分类号： H01F41/00 ,  B22F2003/248 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/01 ,  H01F1/0576 ,  H01F1/0577 ,  H01F10/126 ,  H01F41/005 ,  H01F41/0273 ,  H01F41/32 ,  B22F9/08 ,  B22F1/0055 ,  B22F3/10 ,  B22F3/24 ,  B22F1/0044 ,  B22F3/105

摘要： A rare earth magnet, which is represented by a neodymium magnet (Nd2Fe14B) and neodymium magnet films with applications in micro-systems. A method for producing a rare earth magnet, comprising: (a) quenching a molten metal having a rare earth magnet composition to form quenched flakes of nanocrystalline structure; sintering the quenched flakes; subjecting the sintered body obtained to an orientation treatment; and applying a heat treatment with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and at the same time, low enough to prevent coarsening of the crystal grains, (b) thick films deposited on a substrate, applying an annealing to crystallize with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and, at the same time, low enough to prevent coarsening of the crystal grains.

摘要翻译： 一种稀土磁体，由钕磁铁（Nd2Fe14B）和钕磁体薄膜组成，应用于微系统。 一种稀土类磁体的制造方法，其特征在于，包括：（a）使具有稀土类磁铁组合物的熔融金属淬火，形成骤冷的纳米晶体结构的片状物; 烧结淬火片; 对获得的烧结体进行取向处理; 并且在足够高的温度下进行加压热处理以使晶界相扩散或流化，同时低至足以防止晶粒粗大化，（b）沉积在基板上的厚膜， 在足够高的温度下通过加压结晶退火以使晶界相扩散或流化，同时足够低以防止晶粒粗化。

公开(公告)号：US20130248754A1

公开(公告)日：2013-09-26

申请号：US13824572

申请日：2011-05-13

申请人： Noritsugu Sakuma ,  Hidefumi Kishimoto ,  Akira Kato ,  Tetsuya Shoji ,  Dominique Givord ,  Nora Dempsey ,  Thomas George Woodcock ,  Oliver Gutfleisch ,  Gino Hrkac ,  Thomas Schrefl

发明人： Noritsugu Sakuma ,  Hidefumi Kishimoto ,  Akira Kato ,  Tetsuya Shoji ,  Dominique Givord ,  Nora Dempsey ,  Thomas George Woodcock ,  Oliver Gutfleisch ,  Gino Hrkac ,  Thomas Schrefl

IPC分类号： H01F41/00 ,  H01F1/01

CPC分类号： H01F41/00 ,  B22F2003/248 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/01 ,  H01F1/0576 ,  H01F1/0577 ,  H01F10/126 ,  H01F41/005 ,  H01F41/0273 ,  H01F41/32 ,  B22F9/08 ,  B22F1/0055 ,  B22F3/10 ,  B22F3/24 ,  B22F1/0044 ,  B22F3/105

摘要： The method of the present invention produces a rare earth magnet, which is represented by a neodymium magnet (Nd2Fe14B) and neodymium magnet films with applications in micro-systems, by using a heat treatment method capable of enhancing the magnetic characteristics, particularly the magnetic coercive force. A method for producing a rare earth magnet, comprising: (a) quenching a molten metal having a rare earth magnet composition to form quenched flakes of nanocrystalline structure; sintering the quenched flakes; subjecting the sintered body obtained to an orientation treatment; and applying a heat treatment with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and at the same time, low enough to prevent coarsening of the crystal grains. (b) thick films deposited on a substrate, applying an annealing to crystallize with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and, at the same time, low enough to prevent coarsening of the crystal grains. Preferably, an element capable of lowering the temperature at which the grain boundary phase can be diffused or fluidized, is added to the rare earth magnet composition.

摘要翻译： 本发明的方法通过使用能够增强磁特性，特别是磁矫顽力的热处理方法来生产由钕磁体（Nd2Fe14B）和钕磁体薄膜表示的稀土磁体，其应用在微系统中 力。 一种稀土类磁体的制造方法，其特征在于，包括：（a）使具有稀土类磁铁组合物的熔融金属淬火，形成骤冷的纳米晶体结构的片状物; 烧结淬火片; 对获得的烧结体进行取向处理; 在足够高的温度下进行加压热处理，使晶界相扩散或流化，同时低至足以防止晶粒粗大化。 （b）沉积在基板上的厚膜，施加退火以在足够高的温度下加压结晶，以使晶界相扩散或流化，同时足够低以防止晶粒粗化。 优选地，能够将能够使晶界相扩散或流化的温度降低的元素添加到稀土类磁体组合物中。

公开(公告)号：US08085578B2

公开(公告)日：2011-12-27

申请号：US12487388

申请日：2009-06-18

申请人： Laura J. Heyderman ,  Thomas Jung ,  Elena Mengotti ,  André Bisig ,  Arantxa Fraile Rodríguez ,  Frithjof Nolting ,  Hans-Benjamin Braun ,  Thomas Schrefl

发明人： Laura J. Heyderman ,  Thomas Jung ,  Elena Mengotti ,  André Bisig ,  Arantxa Fraile Rodríguez ,  Frithjof Nolting ,  Hans-Benjamin Braun ,  Thomas Schrefl

IPC分类号： G11C11/00 ,  G11C13/00

CPC分类号： G11C11/14 ,  G11C11/56 ,  G11C11/5607

摘要： A method and a system for coding and reading out information in a microscopic cluster formed with coupled functional islands includes: generating the cluster by forming a regular microscopic pattern for locating the functional islands; making use of a physical or chemical property of each individual island and making use of the coupling between the functional islands; assigning different information to different energy levels of the cluster; effecting a change of the physical or chemical property of at least one functional island in order to change the energy level of the cluster to the energy level equivalent to the information content to be coded; and reading out the information. These measures allow forming a cluster having distinct energy levels, each being assigned to a distinct information content. These systems pave the way for future devices based on clusters of coupled islands and, armed with the complete knowledge of the energy states, the door is opened for use of these finite multistate clustered structures in future spintronic devices, for example for data storage, memory applications or to perform logic operations.

摘要翻译： 用于在由耦合的功能岛形成的微观簇中编码和读出信息的方法和系统包括：通过形成用于定位功能岛的规则微观图案来生成簇; 利用每个岛屿的物理或化学性质并利用功能岛之间的耦合; 将不同的信息分配给集群的不同能级; 实现至少一个功能岛的物理或化学性质的改变，以将簇的能级改变为与要编码的信息内容相当的能级; 并阅读信息。 这些措施允许形成具有不同能量水平的簇，每个簇被分配到不同的信息内容。 这些系统为基于耦合岛群的未来设备铺平了道路，并且随着对能量状态的全面了解，该门被开放以在将来的自旋电子设备中使用这些有限的多状态集群结构，例如用于数据存储，存储器 应用程序或执行逻辑操作。

公开(公告)号：US20110019305A1

公开(公告)日：2011-01-27

申请号：US12509540

申请日：2009-07-27

申请人： Dieter Süss ,  Thomas Schrefl ,  Muhammad Asif Bashir

发明人： Dieter Süss ,  Thomas Schrefl ,  Muhammad Asif Bashir

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  B82Y10/00 ,  G11B5/743 ,  G11B2005/001 ,  G11B2005/0029

摘要： A magnetic storage device comprises a magnetic recording medium; a writing/reading element for storing information on the magnetic recording medium by generating a write field in order to switch regions within the magnetic recording medium in accordance with the information to be stored and reading stored information from the magnetic recording medium by sensing the switched regions within the recording medium and a layer-addressing means for addressing different layers of the magnetic recording medium by applying an oscillating magnetic layer address field in addition to the write field and by controlling the frequency of the oscillating magnetic field so that regions in different layers of the magnetic recording medium can be selectively switched and read.

摘要翻译： 磁存储装置包括磁记录介质; 用于通过产生写入场来存储关于磁记录介质的信息的写入/读取元件，以便根据要存储的信息切换磁记录介质内的区域，并通过感测切换区域来读取来自磁记录介质的存储信息 并且通过施加除了写入场之外的振荡磁性层地址场以及通过控制振荡磁场的频率来寻址不同层的磁记录介质的层寻址装置，使得不同层的区域 可以选择性地切换和读取磁记录介质。

公开(公告)号：US20100232251A1

公开(公告)日：2010-09-16

申请号：US12487388

申请日：2009-06-18

申请人： Laura J. Heyderman ,  Thomas Jung ,  Elena Mengotti ,  André Bisig ,  Arantxa Fraile Rodríguez ,  Frithjof Nolting ,  Hans-Benjamin Braun ,  Thomas Schrefl

发明人： Laura J. Heyderman ,  Thomas Jung ,  Elena Mengotti ,  André Bisig ,  Arantxa Fraile Rodríguez ,  Frithjof Nolting ,  Hans-Benjamin Braun ,  Thomas Schrefl

IPC分类号： G11C11/06

CPC分类号： G11C11/14 ,  G11C11/56 ,  G11C11/5607

摘要： A method and a system for coding and reading out information in a microscopic cluster formed with coupled functional islands includes: generating the cluster by forming a regular microscopic pattern for locating the functional islands; making use of a physical or chemical property of each individual island and making use of the coupling between the functional islands; assigning different information to different energy levels of the cluster; effecting a change of the physical or chemical property of at least one functional island in order to change the energy level of the cluster to the energy level equivalent to the information content to be coded; and reading out the information. These measures allow forming a cluster having distinct energy levels, each being assigned to a distinct information content. These systems pave the way for future devices based on clusters of coupled islands and, armed with the complete knowledge of the energy states, the door is opened for use of these finite multistate clustered structures in future spintronic devices, for example for data storage, memory applications or to perform logic operations.

摘要翻译： 用于在由耦合的功能岛形成的微观簇中编码和读出信息的方法和系统包括：通过形成用于定位功能岛的规则微观图案来生成簇; 利用每个岛屿的物理或化学性质并利用功能岛之间的耦合; 将不同的信息分配给集群的不同能级; 实现至少一个功能岛的物理或化学性质的改变，以将簇的能级改变为与要编码的信息内容相当的能级; 并阅读信息。 这些措施允许形成具有不同能量水平的簇，每个簇被分配到不同的信息内容。 这些系统为基于耦合岛群的未来设备铺平了道路，并且随着对能量状态的全面了解，该门被开放以在将来的自旋电子设备中使用这些有限的多状态集群结构，例如用于数据存储，存储器 应用程序或执行逻辑操作。