Design of highly oriented (HOR) media for extremely high density recording

C. H. Hee, J. P. Wang, T. C. Chong, T. S. Low

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


The magnetic properties and recording performance of highly oriented (HOR) longitudinal media are systematically studied via micromagnetic simulation. It was found that highly oriented longitudinal media could be achieved by controlling the anisotropy axes distribution. The effect of anisotropy constant, saturated magnetization and exchange coupling constants on the hysteresis loops are presented. It was further found that highly oriented media show an ultra-low transition noise. Another interesting observation made was that increasing Ms for the HOR media decreases the coercivity, which suggests practical usage of this media with current head field. A 500Gbit/in2 recording media is simulated to support the application of the highly oriented longitudinal media for ultra high density recording.

Original languageEnglish (US)
Pages (from-to)440-444
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Issue number1-3
StatePublished - Oct 1 2001
EventProceedings of the 5th Perpendicular Magnetic Recording Conference (PMRC 2000) - Sendai, Japan
Duration: Oct 23 2000Oct 26 2000


  • Extreme high density
  • Highly oriented media
  • Longitudinal magnetic recording
  • Micromagnetic simulation
  • Orientation ratio


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