Microwave-assisted magnetization reversal in a perpendicularly magnetized film

Takashi Yoshioka, Takayuki Nozaki, Takeshi Seki, Masashi Shiraishi, Teruya Shinjo, Yoshishige Suzuki, Yuji Uehara

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

Microwave-assisted magnetization reversal in a perpendicularly magnetized film was investigated using the anomalous Hall effect. Although the reversal process of the sample in this work was governed by nucleation and domain wall propagation, a large decrease in the reversal field, as much as 75% of the coercive field, was observed when the optimum rf magnetic field was applied. Our results indicate that the microwave assisted effect promotes nucleation of the reversed domain leading to a reduction of the reversal field in a nucleation-type perpendicularly magnetized system.

Original languageEnglish
Article number013002
JournalApplied Physics Express
Volume3
Issue number1
DOIs
Publication statusPublished - 2010 Jan
Externally publishedYes

ASJC Scopus subject areas

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

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