Current-in-Plane GMR Trilayer Head Design for Hard-Disk Drives: Characterization and Extendibility

@article{Lamberton2007CurrentinPlaneGT,
  title={Current-in-Plane GMR Trilayer Head Design for Hard-Disk Drives: Characterization and Extendibility},
  author={R. R. Lamberton and Mike A. Seigler and Kalman Pelhos and Hua Zhou and Michael McCurry and M. Ormston and Gary Yi and Gavin McClean and Thomas McLaughlin and P. Kolbo and O. Heininen and V G Sapozhnikov and Sining Mao},
  journal={IEEE Transactions on Magnetics},
  year={2007},
  volume={43},
  pages={645-650}
}
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… CONTINUE READING
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