Photographic observation of magnetic domain structure with three-dimensional local magnetization direction

Sakae Meguro, Koichi Akahane, Shin Saito

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The direction of magnetization of a magnetic material is possibly oriented three-dimensionally because of the presence of magnetic anisotropy field, self-demagnetizing field, and stray field. Therefore, the three-dimensional detection of the direction of magnetization is required. The method of magnetic domain observation by photographic imaging utilizing the Kerr effect is widely used. If the perpendicular magnetization components exist, there is a problem that obliquely incident light has superimposed longitudinal Kerr and polar Kerr effects. To perform the three-dimensional detection of magnetization direction, it is necessary to eliminate the influence of the polar Kerr effect from the Kerr effect of obliquely incident light. We report the photographic observation of the magnetic domain structure and the detection of the three-dimensional local magnetization direction using the Kerr effect, applying only an in-plane saturation magnetic field.

Original languageEnglish
Article number07MF04
JournalJapanese journal of applied physics
Volume55
Issue number7
DOIs
Publication statusPublished - 2016 Jul

ASJC Scopus subject areas

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

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