Microwave-Assisted Magnetic Recording on Dual-Thickness and Dual-Layer Bit-Patterned Media

Simon John Greaves, Yasushi Kanai, Hiroaki Muraoka

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This paper describes how microwave-assisted magnetic recording can be used to reduce adjacent track erasure and increase areal density in dual-thickness and dual-layer bit-patterned media. By tuning the high-frequency magnetic field, selective switching of dots in different layers or dots with different thicknesses can be achieved. Offsetting arrays of dots in different layers makes it easier to detect the signal from each layer, and areal densities of 5 Tb/in2, or more, may be possible.

Original languageEnglish
Article number7348704
JournalIEEE Transactions on Magnetics
Volume52
Issue number7
DOIs
Publication statusPublished - 2016 Jul

Keywords

  • Bit-patterned media (BPM)
  • micromagnetics
  • microwave-assisted magnetic recording (MAMR)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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