Observation of magnetic domain structure in anatase (Ti,Co)O2 thin film at room temperature

Thantip S. Krasienapibal, Shun Inoue, Tomoteru Fukumura, Tetsuya Hasegawa

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Magnetic domain structures in anatase (Ti,Co)O2 (001) epitaxial thin films were observed at room temperature. Magnetic force microscopy in vacuum enabled to observe submicrometer-sized maze domain. Variation of magnetic domain structure as functions of carrier density and Co content was in accordance with that of macroscopic magnetization representing close relationship between the bulk magnetism and magnetic domain structure. With increasing carrier density and/or Co content, the magnetic domain became larger with larger magnetic force signal mostly, where the ferromagnetic transition at carrier density of ∼2 × 1019cm-3 was observed as an emergence of magnetic domain structure. Micromagnetic parameters were evaluated as functions of carrier density and Co content.

本文言語English
論文番号202402
ジャーナルApplied Physics Letters
106
20
DOI
出版ステータスPublished - 2015 5 18

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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