Effect of Spin-Torque Oscillator Tilt Angle in Microwave-Assisted Magnetic Recording

Simon John Greaves, Yasushi Kanai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Microwave-assisted magnetic recording with a tilted spin-torque oscillator (STO) was examined. Tilting the STO toward the trailing shield of a write head makes it easier to achieve stable oscillation. The signal-to-noise ratio (SNR) of written tracks was examined using an analytical head field distribution based on a finite-element model of a write head. The maximum SNR was similar for a range of STO tilt angles, but the optimum position of the STO in the write head gap depended on the STO tilt angle.

Original languageEnglish
Article number8468222
JournalIEEE Transactions on Magnetics
Volume55
Issue number3
DOIs
Publication statusPublished - 2019 Mar

Keywords

  • Antiferromagnetic coupling
  • dual-layer recording
  • microwave-assisted magnetic recording (MAMR)
  • simulation

ASJC Scopus subject areas

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

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