Current-in-Plane GMR Trilayer Head Design for Hard-Disk Drives: Characterization and Extendibility
| Autor: | P. Kolbo, G. McClean, Kalman Pelhos, Hua Zhou, M. McCurry, O. Heininen, Marcus Ormston, Michael Allen Seigler, T. McLaughlin, Robert William Lamberton, Gary Yi, Sining Mao, Victor Boris Sapozhnikov |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
Magnetoresistance business.industry Perpendicular recording Giant magnetoresistance Aspect ratio (image) Noise (electronics) Electronic Optical and Magnetic Materials Optics Nuclear magnetic resonance Magnet Area density Electrical and Electronic Engineering business Micromagnetics |
| Zdroj: | IEEE Transactions on Magnetics. 43:645-650 |
| ISSN: | 0018-9464 |
| DOI: | 10.1109/tmag.2006.888213 |
| Popis: | The current-in-plane giant magnetoresistive (GMR) trilayer readback sensor (CIP-3L), where only one permanent magnet at the back edge of the GMR stack is used to stabilize and bias a dual free layer system, is reviewed. Micromagnetic modeling is employed to show that the design has improved efficiency over abutted junction (ABJ) tunneling magnetoresistive (TMR) head designs. An experimental evaluation of how permanent magnet thickness (PM Th), interlayer exchange coupling (J), and stripe height impact the signal-to-noise ratio, symmetry, and stability of prototype CIP-3L heads is conducted. The study indicates that PM Th >400 nm, J |
| Databáze: | OpenAIRE |
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