Basic noise mechanisms of heat-assisted-magnetic recording

  title={Basic noise mechanisms of heat-assisted-magnetic recording},
  author={Christoph Vogler and Claas Abert and Florian Bruckner and Dieter Suess and Dirk Praetorius},
  journal={Journal of Applied Physics},
Heat-assisted magnetic recording (HAMR) is expected to be a key technology to significantly increase the areal storage density of magnetic recording devices. At high temperatures, thermally induced noise becomes a major problem, which must be overcome in order to reliably write magnetic bits with narrow transitions. We propose an elementary model based on the effective recording time window (ERTW) to compute the switching probability of bits during HAMR. With few assumptions, this analytical… Expand

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