Oxygen-deficient effect on charge ordering in spin- and charge-frustrated ferrite YFe2 O4-δ

Y. Horibe, K. Yoshii, Naoshi Ikeda, S. Mori

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The effects of oxygen deficiency on charge ordering were investigated by transmission electron microscopy at various deficiencies and temperatures of YFe2 O4-δ. We found that the detailed nature of the charge ordering structures is associated with changes in the superlattice reflections and diffuse scattering. They go from (1/3 1/3 1/2)-type superlattice reflection to (1/3 1/3 l) -type straight-type diffuse scattering, then to zigzag-type diffuse scattering. With the oxygen deficiencies increased, the interchange correlation of Fe-O bilayers obviously decreases, yet the triple superperiodicity along [110] remains unchanged. These findings on frustrated ferrites indicate the stability of in-plane threefold charge ordering and the importance of the interchange interaction between bilayers in the structural phase transitions.

Original languageEnglish
Article number092104
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume80
Issue number9
DOIs
Publication statusPublished - Sep 22 2009

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Ferrite
ferrites
hypoxia
Interchanges
Scattering
Oxygen
oxygen
scattering
Ferrites
Phase transitions
Transmission electron microscopy
transmission electron microscopy
interactions
Temperature
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Oxygen-deficient effect on charge ordering in spin- and charge-frustrated ferrite YFe2 O4-δ. / Horibe, Y.; Yoshii, K.; Ikeda, Naoshi; Mori, S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 80, No. 9, 092104, 22.09.2009.

Research output: Contribution to journalArticle

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