Spin injection layer robustness for microwave assisted magnetic recording
    1.
    发明申请
    Spin injection layer robustness for microwave assisted magnetic recording 有权
    微波辅助磁记录的自旋注入层鲁棒性

    公开(公告)号:US20130082787A1

    公开(公告)日:2013-04-04

    申请号:US13200844

    申请日:2011-10-03

    摘要: A spin transfer (torque) oscillator (STO) with a non-magnetic spacer formed between a spin injection layer (SIL) and a field generation layer (FGL), and with an interfacial layer comprised of Fe(100-V)CoV where v is from 5 to 100 atomic % formed between the SIL and non-magnetic spacer is disclosed. A composite seed layer made of Ta and a metal layer having a fcc(111) or hcp(001) texture is used to enhance perpendicular magnetic anisotropy (PMA) in the STO device. The interfacial layer quenches SIL oscillations and thereby stabilizes the SIL against FGL oscillations. The interfacial layer preferably has a thickness from 5 to 50 Angstroms and enhances amplitude (dR/R) in the STO device. The STO device may have a top SIL or bottom SIL configuration. The SIL is typically a laminated structure such as (Co/Ni)X where x is between 5 and 50.

    摘要翻译: 具有在自旋注入层(SIL)和场产生层(FGL)之间形成的非磁性间隔物的自旋转移(扭矩)振荡器(STO),以及由Fe(100-V)CoV组成的界面层,其中v 公开了在SIL和非磁性间隔物之间​​形成的5至100原子%。 使用由Ta制成的复合晶种层和具有fcc(111)或hcp(001)结构的金属层来增强STO器件中的垂直磁各向异性(PMA)。 界面层淬灭SIL振荡,从而使SIL稳定于FGL振荡。 界面层优选具有5至50埃的厚度,并且增强STO器件中的振幅(dR / R)。 STO设备可能具有顶部SIL或底部SIL配置。 SIL通常是诸如(Co / Ni)X的层压结构,其中x在5和50之间。