Influence of thermal relaxation on readback signal in perpendicular magnetic recording

Mituhiro Hashimoto, Kenji Miura, Hiroaki Muraoka, Hajime Aoi, Yoshihisa Nakamura

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The influence of thermal relaxation on the readback waveforms from perpendicular magnetic recording media was experimentally investigated in time-domain measurements. The signal decay rate at the magnetization transition was smaller than that in between the transitions, reflecting the demagnetization field distribution. The time dependence of the noise in the waveform was characterized as pulsewidth, transition jitter, and pulsewidth fluctuations. While the transition width decreased with elapsed time, the jitter and pulsewidth fluctuations were stable. These time-dependant results could be interpreted by considering the demagnetizing field distribution near the transitions and in between the transitions, which govern the random magnetization domain reversals.

本文言語English
ページ(範囲)3085-3087
ページ数3
ジャーナルIEEE Transactions on Magnetics
41
10
DOI
出版ステータスPublished - 2005 10

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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