Direct observation of low-temperature superstructure in spin- and charge-frustrated ferrite YFe2 O4-δ

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

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The low-temperature superstructure of YFe2 O4-δ was carefully investigated by transmission electron microscopy. We found that the unique superstructure at about 100 K is characterized by 1̄ /142/71/14 -type superlattice reflection spots, suggesting the presence of charge-reordering process. The low-temperature high-resolution images clearly show superlattice modulations in Y-O layers as well as Fe-O layers. The modification of intrabilayer charge interactions due to lattice distortions in Y-O layers is discussed to play a crucial role in the stabilization of long-periodic superstructures at low temperatures.

Original languageEnglish
Article number184119
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume82
Issue number18
DOIs
Publication statusPublished - Nov 29 2010

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Ferrite
ferrites
Image resolution
Temperature
Stabilization
stabilization
Modulation
Transmission electron microscopy
modulation
transmission electron microscopy
high resolution
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Direct observation of low-temperature superstructure in spin- and charge-frustrated ferrite YFe2 O4-δ. / Horibe, Y.; Ikeda, Naoshi; Yoshii, K.; Mori, S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 82, No. 18, 184119, 29.11.2010.

Research output: Contribution to journalArticle

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