Characterization of Oxide Materials for Exchange Decoupling in Perpendicular Thin Film Media

  title={Characterization of Oxide Materials for Exchange Decoupling in Perpendicular Thin Film Media},
  author={Vincent M. Sokalski and Jiang-Gang Zhu and David E. Laughlin},
  journal={IEEE Transactions on Magnetics},
We report on continued measurements using an experimental model system to quantify intergranular exchange coupling in CoCrPt-oxide perpendicular magnetic recording media. A thin film multi-layered structure comprising a high coercivity CoPt unicrystal layer separated from a low coercivity CoPt layer by a thin oxide interlayer is used to model the vertically aligned grains separated by oxide boundaries in CoCrPt-oxide media. Exchange coupling is measured by field shifts of the minor loop from… CONTINUE READING


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