Heat-Assisted Magnetic Recording on Dual Structure Bit Patterned Media

Research output: Contribution to journalArticlepeer-review

Abstract

Heat-assisted magnetic recording on bit patterned media dots with two magnetic structures is modeled. If the magnetic structures have different Curie temperatures two bits of information can be stored in each dot by writing at high and low temperatures. The areal density capability of the dual structure media was calculated and found to be in excess of 7 Tbit/in2, even when taking account of dot position distributions and magnetostatic fields from surrounding dots.

Original languageEnglish
Article number9179785
JournalIEEE Transactions on Magnetics
Volume57
Issue number2
DOIs
Publication statusPublished - 2021 Feb

Keywords

  • Dual structure recording
  • heat-assisted magnetic recording (HAMR)
  • simulation

ASJC Scopus subject areas

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

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