Field sweep rate dependence of media dynamic coercivity

@article{Peng2004FieldSR,
  title={Field sweep rate dependence of media dynamic coercivity},
  author={Qingzhi Peng and H. Richter},
  journal={IEEE Transactions on Magnetics},
  year={2004},
  volume={40},
  pages={2446-2448}
}
The dependence of the media dynamic coercivity dependence on field sweeping rate was obtained for a general case with the media energy barrier /spl Delta/E=K/sub u/V(1-H/H/sub 0/)/sup n/. The effective coercivity measurement time t/sub eff/ for a linearly sweeping field is derived. The general solution was applied to perpendicular media (n=2). The difference in perpendicular media coercivity with a step field and linearly sweeping field is calculated for various H/sub 0/ and K/sub u/V/(k/sub B… CONTINUE READING

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