Real-space observation of magnetic vortex core gyration in a magnetic disc both with and without a pair tag

Akinobu Yamaguchi, Hiroshi Hata, Minori Goto, Motoi Kodama, Yuichi Kasatani, Koji Sekiguchi, Yukio Nozaki, Takuo Ohkochi, Masato Kotsugi, Toyohiko Kinoshita

研究成果: Article査読

8 被引用数 (Scopus)

抄録

We demonstrate the time-resolved real-space observation of vortex gyration in a magnetic circular disc by X-ray magnetic circular dichroism photoemission microscopy at the SPring-8 beamline BL25SU, both with and without an additional structure called a pair tag, which serves to control the magnetic curling direction. By comparing the gyration orbits of the vortices, we found that the gyration properties are dependent on the presence of the additional structure in spite of the discs having the same diameter. Furthermore, we reproduced the vortex gyration by micromagnetic simulation. The confinement potential of the vortex can be controlled by the additional structure.

本文言語English
論文番号023002
ジャーナルJapanese journal of applied physics
55
2
DOI
出版ステータスPublished - 2016 2

ASJC Scopus subject areas

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

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