Multiferroism at room temperature in BiFeO3/BiCrO 3(111) artificial superlattices

Noriya Ichikawa, Masaya Arai, Yusuke Imai, Kei Hagiwara, Hiroshi Sakama, Masaki Azuma, Yuichi Shimakawa, Mikio Takano, Yasutoshi Kotaka, Masashi Yonetani, Hironori Fujisawa, Masaru Shimizu, Kenya Ishikawa, Yasuo Cho

研究成果: Article査読

20 被引用数 (Scopus)

抄録

We report the fabrication of BiFeO3/BiCrO3(111) artificial superlattices with 1/1 stacking in a layer-by-layer growth mode on atomically flat SrTiO3(111) surfaces. While BiFeO3 and BiCrO3 are antiferromagnets having Fe-O-Fe and Cr-O-Cr bonds, these superlattices contain Fe-O-Cr bonds, in which ferromagnetic interaction is expected. Magnetization measurements at 300 K revealed that the magnetic moment per transition metal ion was 1.7 μB, suggesting ferromagnetic spin order. Ferroelectric behavior at room temperature was confirmed by an analysis using a scanning non-linear dielectric microscope.

本文言語English
ページ(範囲)1013021-1013023
ページ数3
ジャーナルApplied Physics Express
1
10
DOI
出版ステータスPublished - 2008 10 1

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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