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公开(公告)号：US4435484A
公开(公告)日：1984-03-06
申请号：US274974
申请日：1981-06-18
CPC分类号： H01F10/24 , G11C19/08 , Y10S428/90
摘要： A device for propagating magnetic domains includes a monocrystalline nonmagnetic substrate of a rare earth gallium garnet bearing a layer of an iron garnet capable of supporting local enclosed magnetic domains. The iron garnet layer is grown in compression on a (100) face of the nonmagnetic substrate. The iron garnet comprises manganese in part of the iron sites of its crystal lattice, and comprises yttrium and at least one representative selected from the group comprising bismuth and the rare earth metals in the dodecahedral lattice sites. Such a magnetic garnet has a very high uniaxial anisotropy and a high domain mobility. These properties make the device extremely suitable for propagating submicron magnetic domains having diameters as small as 0.4 .mu.m.
摘要翻译： 用于传播磁畴的装置包括具有能够支撑局部封闭磁畴的铁石榴石层的稀土镓石榴石的单晶非磁性衬底。 铁石榴石层在非磁性基底的（100）面上压缩生长。 铁石榴石包含其晶格的铁部分的一部分的锰，并且包含钇和至少一种选自十二面体晶格位置中的铋和稀土金属的代表。 这种磁性石榴石具有非常高的单轴各向异性和高的畴迁移率。 这些特性使得该器件非常适用于传播直径小至0.4μm的亚微米磁畴。
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公开(公告)号：US4434212A
公开(公告)日：1984-02-28
申请号：US281270
申请日：1981-07-08
CPC分类号： H01F10/24 , Y10S428/90
摘要： A device for propagating magnetic domains, comprising a monocrystalline nonmagnetic substrate of a material having a garnet structure, and a layer of an iron garnet grown epitaxially on the nonmagnetic substrate. In the dodecahedral lattice sites, the iron garnet comprises at least a bismuth ion and a rare-earth ion selected from the group consisting of lutetium, thulium, and ytterbium. Such a magnetic garnet combines very high uniaxial anisotropy with a high domain mobility, which properties make the device extremely suitable for the propagation of magnetic domains having diameters from approximately 1 to approximately 2 .mu.m under the influence of comparatively low driving fields.
摘要翻译： 一种用于传播磁畴的装置，包括具有石榴石结构的材料的单晶非磁性衬底和在非磁性衬底上外延生长的铁石榴石层。 在十二面体晶格位置，铁石榴石至少包含选自镥，ium和镱的铋离子和稀土离子。 这种磁性石榴石具有非常高的单轴各向异性和高域迁移率，这些特性使得该装置在相对较低的驱动场的影响下非常适合于具有大约1至大约2μm的直径的磁畴的传播。
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3.发明授权
公开(公告)号：US4414290A
公开(公告)日：1983-11-08
申请号：US358062
申请日：1982-03-15
CPC分类号： H01F10/28 , C30B19/02 , C30B29/28 , H01F10/24 , Y10S428/90
摘要： A magnetic structure in which magnetic domains can propagate. The structure comprises a monocrystalline gallium garnet substrate having a surface which is substantially parallel to a (100) crystal plane and on which a layer of rare-earth iron garnet, having a partial substitution of maganese ions in iron sites, is grown in compression. By using a substrate material having a lattice constant between 12.23 and 12.38 .ANG., the compression of a epilayer having certain desired magnetic properties can be adjusted by adjusting the incorporation of lutetium and yttrium ions in the epilayer, without adversely affecting magnetic properties of the layer.
摘要翻译： 磁畴可以传播的磁性结构。 该结构包括具有基本上平行于（100）晶面的表面的单晶镓石榴石基底，并且在其中在压缩中生长具有铁位中的锰离子的部分取代的稀土类铁石榴石层。 通过使用具有12.23和12.38之间的晶格常数的衬底材料，可以通过调节外延层中的镥和钇离子的结合来调节具有特定期望磁特性的外延层的压缩，而不会不利地影响该层的磁特性。
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公开(公告)号：US4138530A
公开(公告)日：1979-02-06
申请号：US810105
申请日：1977-06-27
CPC分类号： H01F10/24 , Y10S428/90
摘要： A magnetic structure having a high magnetic bubble mobility which has the property that magnetic bubbles can be transported in it at very high velocities while using comparatively weak driving fields, comprising a substrate having a (110) oriented deposition surface on which a layer of rare earth -- iron garnet with a substitution of Mn.sup.3+ in iron lattice sites has been grown in compression in such a manner that the layer of rare earth-iron garnet has an orthorhombic anisotropy.
摘要翻译： 具有高磁性气泡迁移率的磁性结构，其具有在使用比较弱的驱动场的同时以非常高的速度传输磁性气泡的特性，该磁性结构包括具有（110）取向沉积表面的基底，稀土 在铁晶格点取代Mn3 +的铁石榴石已经以这样的方式生长，使得稀土 - 铁石榴石层具有斜方晶各向异性。
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公开(公告)号：US4229805A
公开(公告)日：1980-10-21
申请号：US867149
申请日：1978-01-05
申请人： Dirk J. Breed
发明人： Dirk J. Breed
CPC分类号： H01F10/06 , G11C19/0841 , G11C19/085
摘要： A magnetic domain device comprising a layer of a magnetic material for the formation of magnetic domains, for example bubbles, under the influence of a bias magnetic field and a propagation structure with magnetically operating elements for driving the magnetic domains by the sequential formation thereon of preferred positions for the domains. The current conductors used to propagate the domains, either meander conductors or rotary field "coils", are arranged on a layer of silicon, so that the heat developed in the current conductors can readily be carried off by the silicon which exhibits a good thermal conductivity.
摘要翻译： 一种磁畴装置，其包括用于在偏置磁场的影响下形成磁畴的磁性材料层，例如气泡，以及具有磁性操作元件的传播结构，所述磁性操作元件通过顺序形成驱动磁畴，优选的 域名的位置。 用于传播畴的电流导体（曲折导体或旋转场“线圈”）布置在一层硅上，使得在电流导体中显影的热量可以容易地被显示出良好导热性的硅带走 。
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