Current-driven antivortex core resonance measured by the rectifying effect

Minori Goto, Yukio Nozaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We demonstrate the current-driven resonance of a single antivortex core confined in a cross-shaped Ni81Fe19 wire. The antivortex core dynamics can be excited purely by spin transfer torque; therefore, it is significant to understand the current-induced magnetization dynamics. The antivortex core resonance can be measured from the frequency dependence of a rectified voltage generated by an alternating current application. We found that the resonance frequency and peak amplitude greatly depend on the external magnetic field. This result is in good agreement with micromagnetic simulation.

Original languageEnglish
Article number025313
JournalAIP Advances
Volume6
Issue number2
DOIs
Publication statusPublished - 2016 Feb 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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