Side shielded magnetoresistive (MR) read head with perpendicular magnetic free layer
US-8953285-B2 · Feb 10, 2015 · US
Magnetic sensor with doped ferromagnetic cap and/or underlayer
US9099115B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9099115-B2 |
| Application number | US-201314078410-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 12, 2013 |
| Priority date | Nov 12, 2013 |
| Publication date | Aug 4, 2015 |
| Grant date | Aug 4, 2015 |
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Abstract
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A magnetic head according to one embodiment includes an underlayer, a first nonmagnetic spacer layer above the underlayer, a free layer above the first nonmagnetic spacer layer, a second nonmagnetic spacer layer above the free layer, and a cap layer above the second nonmagnetic spacer layer. At least one of the cap layer and the underlayer comprises a soft ferromagnetic material and a high spin orbit coupling material. Other embodiments are also described.
First claim
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What is claimed is: 1. A magnetic head, comprising: an underlayer; a first nonmagnetic spacer layer above the underlayer; a free layer above the first nonmagnetic spacer layer; a second nonmagnetic spacer layer above the free layer; and a cap layer above the second nonmagnetic spacer layer; wherein at least one of the cap layer and the underlayer comprises a soft ferromagnetic material and a high spin orbit coupling material. 2. The magnetic head as…
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- G11B5/3143Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US9099115B2 cover?
- A magnetic head according to one embodiment includes an underlayer, a first nonmagnetic spacer layer above the underlayer, a free layer above the first nonmagnetic spacer layer, a second nonmagnetic spacer layer above the free layer, and a cap layer above the second nonmagnetic spacer layer. At least one of the cap layer and the underlayer comprises a soft ferromagnetic material and a high spin…
- Who is the assignee on this patent?
- HGST Netherlands BV
- What technology area does this patent fall under?
- Primary CPC classification G11B5/3143. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 04 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).