Model analysis of magnetic write head for shingled thermally assisted magnetic recording

Yasushi Kanai, Hidekazu Tamura, Kiyoshi Yamakawa, Kazuetsu Yoshida, Simon J. Greaves, Hiroaki Muraoka

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Magnetic write heads were modeled and analyzed for thermally assisted magnetic recording combined with shingled recording, targeting an areal density of 8 Tbit/in \(^{2}\) and using the Storage Research Consortium (SRC, Japan) specifications. The head design has an indentation for the near field transducer and has a large recording field at the heat spot. Micromagnetic media recording simulations revealed that an areal density of more than 8 Tbit/in \(^{2}\) was possible with shingled recording, compared with 4.4 Tbit/in \(^{2}\) in a nonshingled system. Also, micromagnetic recording head simulations showed that reducing the magnetic head dimensions was effective for high frequency response. Finally, it is shown that a soft magnetic underlayer works quite well at high frequency to enhance the recording field.

Original languageEnglish
Article number6971752
JournalIEEE Transactions on Magnetics
Volume50
Issue number11
DOIs
Publication statusPublished - 2014 Nov 1

Keywords

  • Magnetic write heads
  • micromagnetic simulations
  • shingled recording
  • thermally assisted magnetic recording (TAMR).

ASJC Scopus subject areas

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

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