发明名称 |
Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with multilayer reference layer including a Heusler alloy |
摘要 |
A current-perpendicular-to-the-plane giant magnetoresistance (CPP-GMR) sensor has a multilayer reference layer containing a Heusler alloy. The multilayer reference layer may be a simple pinned layer or the AP2 layer of an antiparallel (AP)-pinned structure. The multilayer reference layer is formed of a crystalline non-Heusler alloy ferromagnetic layer on either an antiferromagnetic layer (in a simple pinned structure) or an antiparallel coupling (APC) layer (in an AP-pinned structure), a Heusler alloy layer adjacent the sensor's nonmagnetic electrically conducting spacer layer, and an intermediate substantially non-crystalline X-containing layer between the crystalline non-Heusler alloy layer and the Heusler alloy layer. The element X is selected from one or more of tantalum (Ta), hafnium (Hf), niobium (Nb) and boron (B). |
申请公布号 |
US8611053(B2) |
申请公布日期 |
2013.12.17 |
申请号 |
US201213415813 |
申请日期 |
2012.03.08 |
申请人 |
BRINKMAN ELIZABETH ANN;CAREY MATTHEW J.;CHILDRESS JEFFREY R.;CHOI YOUNG-SUK;YORK BRIAN R.;HGST NETHERLANDS B.V. |
发明人 |
BRINKMAN ELIZABETH ANN;CAREY MATTHEW J.;CHILDRESS JEFFREY R.;CHOI YOUNG-SUK;YORK BRIAN R. |
分类号 |
G11B5/39 |
主分类号 |
G11B5/39 |
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