Procede de production de films ultra-minces de ferrites
    1.
    发明公开
    Procede de production de films ultra-minces de ferrites 审中-公开
    Herstellungsverfahren vonUltradünnschichtenaus Ferriten

    公开(公告)号:EP2050842A1

    公开(公告)日:2009-04-22

    申请号:EP08290976.3

    申请日:2008-10-17

    IPC分类号: C30B23/02 C30B29/26 H01F10/20

    摘要: Procédé de fabrication permettant la croissance par épitaxie par jets moléculaires (MBE) assistée par plasma d'oxygène atomique de couches ultra-minces de ferrites de structure spinelle.

    摘要翻译: 通过由原子氧等离子体辅助的分子束外延(MBE)制备二元铁素体或三元铁素体的薄层,包括在单晶材料中选择衬底; 将基底放置在生长室中; 调整压力 在> = 350℃下加热衬底; 同时使衬底经受原子氧流,铁原子流和其他原子流; 相对于沉积物的所需化学计量来控制流; 在获得所需厚度的沉积物之后停止原子氧和原子的供应。 通过由原子氧等离子体辅助的分子束外延(MBE)制备式(AFe 2 O 4)的二元铁氧体或式(ABFe 2 O 4)的三元铁素体的薄层包括选择保留其晶体结构的单晶材料中的衬底 温度> 350℃; 将基底放置在生长室中; 将压力调节到生长室中允许通过分子束外延生长的值; 在> 350℃的温度下加热衬底; 同时使基板进行原子氧流,铁原子流和其他原子流(A为二元铁素体,A和B为三元铁素体); 控制流相对于沉积物的所需化学计量(AFe 2O 4或ABFe 2 O 4),其中原子流(铁(Fe),A和任选的B)的总和为0.5-6A /分钟; 在获得所需厚度的沉积物之后,在(1.33×10 -4> -6.66×10 -4)的压力(p)下停止原子氧和原子(铁(Fe),A和任选的B) )在过程的前15分钟内逐渐变化。 A,B:能与Fe和O组合的总化学成分,以产生铁素体。

    Magnetic material and method for preparation thereof
    3.
    发明公开
    Magnetic material and method for preparation thereof 审中-公开
    Magnetischer Werkstoff und Verfahren zu dessen Herstellung

    公开(公告)号:EP1363295A1

    公开(公告)日:2003-11-19

    申请号:EP03252829.1

    申请日:2003-05-06

    IPC分类号: H01F10/20 H01F10/28 H01F10/30

    CPC分类号: H01F10/28 H01F10/20 H01F10/30

    摘要: The invention provides a novel magnetic material having an epitaxially grown single crystalline film of spinel ferrite such as hematite and magnetite as a magnetic layer formed on a substrate. In place of a single crystal substrate of, e.g., magnesium oxide, on which an epitaxial spinel ferrite film is directly grown, the spinel ferrite film in the inventive magnetic material is epitaxially grown on a mica plate as the substrate with intervention of a buffer layer which is a single crystalline thin film of magnesium oxide epitaxially grown on the substrate surface. The thus prepared magnetic material can be used in magnetic devices by virtue of the inexpensiveness and high magnetic properties.

    摘要翻译: 本发明提供了一种新颖的磁性材料,其具有外延生长的尖晶石铁素体单晶膜,例如赤铁矿和磁铁矿作为形成在基底上的磁性层。 代替直接生长外延尖晶石铁氧体膜的例如氧化镁的单晶衬底,将本发明的磁性材料中的尖晶石铁氧体膜外延生长在作为衬底的云母板上,其中缓冲层 其是在衬底表面上外延生长的氧化镁的单晶薄膜。 这样制备的磁性材料可以通过廉价和高磁性来用在磁性装置中。

    GRANULAR THIN MAGNETIC FILM AND METHOD OF MANUFACTURING THE FILM, LAMINATED MAGNETIC FILM, MAGNETIC PART, AND ELECTRONIC DEVICE
    4.
    发明公开
    GRANULAR THIN MAGNETIC FILM AND METHOD OF MANUFACTURING THE FILM, LAMINATED MAGNETIC FILM, MAGNETIC PART, AND ELECTRONIC DEVICE 审中-公开
    “颗粒薄膜磁铁及其制造方法膜的叠层磁性膜,磁性元件和电子元件的”

    公开(公告)号:EP1361586A1

    公开(公告)日:2003-11-12

    申请号:EP02715778.3

    申请日:2002-01-17

    IPC分类号: H01F10/20 H01F41/18

    摘要: There are provided a magnetic thin film utilizing a granular film and having excellent high frequency characteristics and a method of manufacturing the same, and a multilayered magnetic film and magnetic components and electronic equipment utilizing the same.
    A nonreactive sputtering is performed so that there is no oxidation of a magnetic metal, and a saturation magnetization is increased to increase a resonant frequency of permeability. Also, a multi-target simultaneous sputtering is combined with the nonreactive sputtering so that in a granular structure including magnetic grains and an insulating layer a size of the magnetic grains and a thickness of the insulating layer are optimized thereby ensuring a proper magnitude for a crystalline magnetic anisotropy within the grains and excellent soft magnetic properties. Further, the optimization of the thickness of the insulating layer has the effect of improving a resistivity, decreasing an eddy current and improving an exchange interaction between the magnetic grains.

    摘要翻译: 本发明提供一种磁性薄膜利用的粒状膜并且具有优异的高频特性和制造的方法,和一个多层磁膜和磁性元件和电子设备利用相同的。 一种非反应性的溅射被执行以thatthere是无磁性金属的氧化,和饱和磁化强度增加,以增加磁导率的谐振频率。 所以,多靶同时溅射相组合与所述非反应性溅射,从而在一个粒状结构,其包括磁性颗粒并绝缘层的尺寸的磁性颗粒的和的厚度的绝缘层的那样由此优化确保一个适当的量值对于晶体 晶粒和优良的软磁特性内磁各向异性。 此外,绝缘层的厚度的优化具有提高的电阻率,涡流和磁性粒子之间的交换相互作用的改进的降低的效果。

    Magnetic storage medium with perpendicular anisotropy
    5.
    发明公开
    Magnetic storage medium with perpendicular anisotropy 失效
    具有均匀性的磁性储存介质

    公开(公告)号:EP0238047A3

    公开(公告)日:1989-08-30

    申请号:EP87103865.9

    申请日:1987-03-17

    IPC分类号: G11B5/64 H01F10/20

    摘要: A perpendicular magnetic storage medium comprising a substrate and a perpendicular magnetic anisotropic film formed on the substrate, characterized in that the perpendicular magnetic anisotropic film is a film of a sub-oxide of a metal having a composition described by the general formula [(Fe 1-x Co x ) 1-y M y ] 1-z O z (where 0.01≦x≦0.75, O≦y≦0.30, 0.05#zZ0.50 and M means at least one metal excluding Fe and Co); in that it has an easy magnetization axis being perpendicular to a plane thereof, and in that both a peak of diffracted X-ray intensity caused by oxidized Fe and a peak of diffracted X-ray intensity caused by metal state Fe and Co and Metal M are observed in the X-ray diffraction spectrum. The perpendicular magnetic storage medium of the present invention can be produced easily and economically at a low substrate temperature, and has high wear-resistance, high recording/reproducing sensitivity and high recording density.

    Magnetische Anordnung
    7.
    发明公开
    Magnetische Anordnung 失效
    磁性组件。

    公开(公告)号:EP0033990A2

    公开(公告)日:1981-08-19

    申请号:EP81200099.0

    申请日:1981-01-28

    IPC分类号: C30B29/22 C30B15/00 H01F10/20

    摘要: Mit der Herstellung eines Substratmaterials in Form von Erdalkali-Gallat-Einkristallen ist es möglich geworden, monokristalline Bariumhexaferritschichten von hoher Qualität zu züchten. Diese dünnen Bariumhexaferritschichten auf den genannten Substraten sind als magnetische Anordnung aufgrund ihrer sehr grossen uniaxialen Anisotropie und ihrer kleinen Linienbreite hervorragend geeignet als passive Mikrowellenbauelemente, z.B. als Resonanzisolatoren oder Filter im Zentimeterwellenbereich oder als Bauelement in der Informationsspeichertechnik, z.B. in magnetischen Zylinderdomänenanordnungen, insbesondere im Bereich sehr kleiner (submicron)-Zylinderdomänen.

    摘要翻译: 随着生产在碱土没食子酸酯单晶形式的基体材料的,它已成为可以生长高品质的单晶Bariumhexaferritschichten。 这些薄Bariumhexaferritschichten中提到的底物是非常适合作为磁性组件由于其非常大单轴各向异性和它的小线宽作为无源微波器件,例如 作为谐振滤波器或绝缘体在超高频范围内,或在信息存储技术的成分,例如 在磁畴缸装置,特别是在非常小(亚微米)-Zylinderdomänen的范围内。

    MAGNETIC COMPOSITE
    9.
    发明公开
    MAGNETIC COMPOSITE 审中-公开

    公开(公告)号:EP4280234A1

    公开(公告)日:2023-11-22

    申请号:EP22739463.2

    申请日:2022-01-13

    摘要: Provided is a magnetic composite including a ferrite layer that is dense, has a relatively large thickness, is excellent in magnetic properties and electrical properties, and further has good adhesion.
    The magnetic composite includes a metal base material and a ferrite layer provided on a surface of the metal base material. In the magnetic composite, the metal base material has a thickness (d M ) of 20 µm or more, and the ferrite layer has a thickness (d F ) of 2.0 µm or more, contains spinel-type ferrite as a principal component, and has a ratio (I 222 /I 311 ) of 0.00 or more and 0.03 or less, the ratio being of an integrated intensity (I 222 ) of a (222) plane to an integrated intensity (I 311 ) of a (311) plane in X-ray diffraction analysis.