Numerical analysis of inductive detection of magnetic vortex motion excited with circularly polarized field

Xiaorui Ya, Terumitsu Tanaka, Kimihide Matsuyama

Research output: Contribution to journalArticlepeer-review

Abstract

In the present study, the rotation and switching of a vortex core in submicron-size square dots were numerically analyzed by micromagnetic simulation. This study clarified that the eigenfrequency of the vortex core is strongly dependent on the magnetostatic energy and that rapid switching can be realized by circularly polarized fields with practical amplitudes at the corresponding eigenfrequency. The inductive detection of vortex core rotation, which can distinguish vortex core polarity, was successfully demonstrated and the structural design of the detector was optimized.

Original languageEnglish
Article number07ME02
JournalJapanese journal of applied physics
Volume55
Issue number7
DOIs
Publication statusPublished - Jul 2016

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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