发明授权
- 专利标题： Magnetoresistive effect head having a multilayered pinned layer and/or free layer having amorphous and crystalline layers, and systems thereof
- 专利标题（中）： 具有多层被钉扎层和/或具有无定形和结晶层的自由层的磁阻效应头及其系统
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申请号： US12955767申请日： 2010-11-29
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公开(公告)号： US08514527B2公开(公告)日： 2013-08-20
- 发明人: Kojiro Komagaki , Katsumi Hoshino , Masashige Sato , Hiroyuki Hoshiya
- 申请人： Kojiro Komagaki , Katsumi Hoshino , Masashige Sato , Hiroyuki Hoshiya
- 申请人地址： NL Amsterdam
- 专利权人： HGST Netherlands B.V.
- 当前专利权人： HGST Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 代理机构： Zilka-Kotab, PC
- 优先权： JP2009-278388 20091208
- 主分类号： G11B5/39
- IPC分类号： G11B5/39
摘要：
According to one embodiment, a magnetoresistive effect head includes a magnetically pinned layer having a direction of magnetization that is pinned, a free magnetic layer positioned above the magnetically pinned layer, the free magnetic layer having a direction of magnetization that is free to vary, and a barrier layer comprising an insulator positioned between the magnetically pinned layer and the free magnetic layer, wherein at least one of the magnetically pinned layer and the free magnetic layer has a layered structure, the layered structure including a crystal layer comprising one of: a CoFe magnetic layer or a CoFeB magnetic layer and an amorphous magnetic layer comprising CoFeB and an element selected from: Ta, Hf, Zr, and Nb, wherein the crystal layer is positioned closer to a tunnel barrier layer than the amorphous magnetic layer. In another embodiment, a magnetic data storage system includes the magnetoresistive effect head described above.
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