Read channels for pre-patterned media, with trench playback

@article{Hughes2003ReadCF,
  title={Read channels for pre-patterned media, with trench playback},
  author={G. F. Hughes},
  journal={Digest of INTERMAG 2003. International Magnetics Conference (Cat. No.03CH37401)},
  year={2003},
  pages={DT-07}
}
  • G.F. Hughes
  • Published 2003 in
    Digest of INTERMAG 2003. International Magnetics…
In this paper, the trench media can produce significant playback signals, since the maximum trench depth is comparable to the bit size a lithographic minimum feature size requirement. By DC magnetizing the trenches, their signal is a repeatable signal polarity pulse (bit writing must not switch the trench media). 
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