Doping effect on the charge ordering in LuFe2O4

Yoji Matsuo, Satoshi Shinohara, Shigeo Mori, Yoichi Horibe, Kenji Yoshii, Naoshi Ikeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Change of the charge ordered (CO) structure by substituting Cu2+ for Fe2+ in LuFe2O4 was investigated by means of the transmission electron microscopy. The CO structure in LuFe 2O4 is characterized by the modulated structure with the wave vector of q=1/3[1-13/2] and the average size of the CO domains can be estimated to be about 10-20nm. On the contrary, the Cu substitution in LuFe 2O4 destroyed the CO structure drastically and induced characteristic local lattice distortion, which gives rise to characteristic diffuse scattering in the reciprocal space. High-resolution lattice images revealed that there exist nano-scale clusters, which are characterized as the short-range ordering of the Fe3+ and Cu2+ ions on the triangular lattice. In addition, the magnetic measurement revealed that LuFeCuO4 exhibits an antiferromagnetic transition around 50K, which is lower than the Neel temperature of 250K in LuFe2O4.

Original languageEnglish
Title of host publicationFerroelectrics and Multiferroics
PublisherMaterials Research Society
Pages22-27
Number of pages6
ISBN (Print)9781604234183
DOIs
Publication statusPublished - 2006
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 27 2006Dec 1 2006

Publication series

NameMaterials Research Society Symposium Proceedings
Volume966
ISSN (Print)0272-9172

Other

Other2006 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/27/0612/1/06

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Doping effect on the charge ordering in LuFe2O4'. Together they form a unique fingerprint.

Cite this