Article comprising exchange-coupled magnetic materials
    1.
    发明公开
    Article comprising exchange-coupled magnetic materials 失效
    Element mit Wechselkupplung-Materialien

    公开(公告)号:EP0772210A1

    公开(公告)日:1997-05-07

    申请号:EP96307790.4

    申请日:1996-10-29

    IPC分类号: H01F10/08 H01F17/00

    摘要: Articles according to the invention exemplarily comprise a magnetically hard oxide layer (e.g., 81) in contact with a magnetically soft oxide layer (e.g., 82), with spins in the latter at room temperature exchange-coupled to the (oriented) spins in the former. Exemplarily both materials are ferrimagnetic spinel-type oxides, e.g., CoFe 2 O 4 /(Mn, Zn)Fe 2 O 4 . Material combinations according to the invention can be advantageously used in high frequency circuit components such as inductors (e.g., 70), since the magnetically soft layer can be in a substantially single domain state even after exposure to a magnetic field of considerable strength, e.g., up to about 500 Oe.

    摘要翻译: 根据本发明的制品示例性地包括与磁性软氧化物层(例如82)接触的磁性硬氧化物层(例如81),其中后者中的自旋与室温下的(定向)自旋交联耦合 前任的。 示例性地,两种材料是亚铁磁性尖晶石型氧化物,例如CoFe 2 O 4 /(Mn,Zn)Fe 2 O 4。 根据本发明的材料组合可以有利地用于诸如电感器(例如,70)的高频电路部件中,因为即使在暴露于相当强度的磁场之后,磁软层也可以处于基本上单一的畴状态, 高达约500 Oe。