A new read sensor design is proposed in attempt to solve the magnetization distribution and thermal stability problems for nano-meter scale read sensors. In this design the free layer has a perpendicular-to-plane easy axis and the reference layer has an in-plane easy axis. Giant magnetoresistance (GMR) film with this structure is demonstrated in which the free layer is a [CoFe/Pt⌉×n multilayer. The structure of [CoFe/Pt⌉×n multi-layer has to be optimized so that the magnetic properties of the free layer can meet the requirement of a MR reader.
|Original language||English (US)|
|Number of pages||6|
|Journal||IEEE Transactions on Magnetics|
|State||Published - Feb 2005|
Bibliographical noteFunding Information:
Manuscript received August 8, 2004. This work was supported by Seagate Technology, Bloomington, MN.
- Giant magnetoresistance
- Magnetic domains
- Magnetic heads
- Magnetic noise
- Magnetic sensor
- Perpendicular magnetic anisotropy