Magnetocrystalline anisotropy behavior in the multiferroic BiMnO 3 examined by Lorentz transmission electron microscopy

T. Asaka*, M. Nagao, T. Yokosawa, K. Kokui, E. Takayama-Muromachi, K. Kimoto, K. Fukuda, Y. Matsui

*この研究の対応する著者

研究成果: Article査読

4 被引用数 (Scopus)

抄録

We investigated magnetic domain structures of a multiferroic manganite, BiMnO 3, by Lorentz transmission electron microscopy. Ferromagnetic domains were observed below ∼105 K, close to the ferromagnetic Curie temperature, T C. The spontaneous magnetization aligns distinctly along the [010] direction, suggesting that the magnetic easy direction is along the b axis. Inflection and merging of the domain walls was observed at twin boundaries. This indicates pinning of the magnetic domain walls at crystallographic twin boundaries. Furthermore, we observed narrow magnetic domain walls, suggesting strong magnetocrystalline anisotropy.

本文言語English
論文番号052407
ジャーナルApplied Physics Letters
101
5
DOI
出版ステータスPublished - 2012 7月 30
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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