Nanometer-sized domain structures in LuFeMO4 (M = Cu, Co) revealed by energy-filtered transmission electron microscopy

Y. Matuso*, A. Hirata, Y. Horibe, K. Yoshii, N. Ikeda, S. Mori

*この研究の対応する著者

研究成果: Conference article査読

4 被引用数 (Scopus)

抄録

Diluted effect on the charge ordered (CO) structure in dielectric materials LuFeMO4 (M = Cu, Co) were investigated by an energy-filtered transmission electron microscopy (TEM), in combination with a conventional TEM. It is revealed that partial substitution of Cu2 + and Co2 + for Fe2 +in LuFe2O4 destabilized the CO structure. In LuFeCuO4, there exist characteristic zigzag-shaped diffuse streaks and diffuse spots at the h/3-δ h/3-δ 0-type positions (h: integer, δ = 0.06) in reciprocal space, which originate from static cationic ordering of Fe3 + and Cu2 + ions in the triangular lattice. Moreover, real-space images by the energy-filtered TEM revealed that nanometer-sized domain structures with the 5∼10 nm size are formed. In contrast, honeycomb-shaped diffuse streaks were found in LuFeCoO4, in which no domain structures are observed in real-space images.

本文言語English
ページ(範囲)56-62
ページ数7
ジャーナルFerroelectrics
380
1 PART 1
DOI
出版ステータスPublished - 2009
外部発表はい
イベント6th Asian Meeting on Ferroelectrics, AMF-6 - Taipei, Taiwan, Province of China
継続期間: 2008 8月 22008 8月 6

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Nanometer-sized domain structures in LuFeMO4 (M = Cu, Co) revealed by energy-filtered transmission electron microscopy」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル