Collapsing processes of charge ordered structure in charge- and spin- frustrated ferrite YbFe2O4

K. Matsumoto, T. Koyama, S. Mori, K. Yoshii, N. Ikeda

Research output: Contribution to journalConference article

Abstract

In order to clarify the stability of charge ordered structure (CO) in charge- and spin-frustrated ferrite YbFe2O4, we have investigated changes of the CO structure by partial substitution of Mn 2+ for Fe2+ in YbFe2O4 by a transmission electron microscope (TEM), in combination with conventional dielectric measurement. It is revealed that subtle substitution of Mn 2+ for Fe2+ in YbFe2O4 destroyed drastically the CO structure with the wave vector of q=<1/3 1/3 1/2> and, instead, induced polar clustering structure characterized by honeycomb-shaped diffuse scatterings in the reciprocal space. The formation of polar clustering structure should be responsible for the characteristic dielectric dispersion.

Original languageEnglish
Article number012085
JournalJournal of Physics: Conference Series
Volume320
DOIs
Publication statusPublished - Jan 1 2011
EventInternational Conference on Frustration in Condensed Matter, ICFCM - Sendai, Japan
Duration: Jan 11 2011Jan 14 2011

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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