High-Frequency Magnetic Recording Using a Dual Write Head

Naoki Akitaya, Simon John Greaves, Hiroaki Muraoka

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Ultrashort magnetic field pulses of tens of picoseconds duration are able to reverse the magnetization of a particle if the applied field is perpendicular to the initial magnetization vector. Here, a dual write head structure combining ring and single pole type (SPT) heads is proposed to generate such fields in a recording medium in order to increase the rate at which data can be written. Using such a head, the magnetization reversal time can be reduced to 1/2-1/3 of that when using an SPT head.

Original languageEnglish
Article number7366572
JournalIEEE Transactions on Magnetics
Issue number7
Publication statusPublished - 2016 Jul


  • Micromagnetics
  • dual head
  • high speed magnetic recording


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