Charge ordering of LuFe2O4 observed by an anomalous X-ray dispersion

Naoshi Ikeda, Shinichiro Nohdo, Yasusada Yamada, Eri Takahashi, Kay Kohn

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8 Citations (Scopus)

Abstract

We observed a superlattice reflection for triangular layered oxide LuFe2O4 by using anomalous X-ray dispersion with synchrotron radiation source. We found that superlattice spot (1/3, 1/3, 4.5) shows a large intensity variation upon a slight change of incident X-ray energy (wave length) from 7.114 keV (1.7437 Å) to 7.1448 keV (1.7353 Å) across the Fe absorption edge. This phenomenon is explained by superlattice structure of Fe2+ and Fe3+ on triangular lattice. The existence of the superlattice structure due to the charge ordering of iron ions on triangular lattice indicates that LuFe2O4 possesses local spontaneous polarization.

Original languageEnglish
JournalJournal of the Korean Physical Society
Volume32
Issue numberSUPPL. 1
Publication statusPublished - Feb 1998
Externally publishedYes

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radiation sources
synchrotron radiation
x rays
iron
oxides
polarization
ions
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ikeda, N., Nohdo, S., Yamada, Y., Takahashi, E., & Kohn, K. (1998). Charge ordering of LuFe2O4 observed by an anomalous X-ray dispersion. Journal of the Korean Physical Society, 32(SUPPL. 1).

Charge ordering of LuFe2O4 observed by an anomalous X-ray dispersion. / Ikeda, Naoshi; Nohdo, Shinichiro; Yamada, Yasusada; Takahashi, Eri; Kohn, Kay.

In: Journal of the Korean Physical Society, Vol. 32, No. SUPPL. 1, 02.1998.

Research output: Contribution to journalArticle

Ikeda, N, Nohdo, S, Yamada, Y, Takahashi, E & Kohn, K 1998, 'Charge ordering of LuFe2O4 observed by an anomalous X-ray dispersion', Journal of the Korean Physical Society, vol. 32, no. SUPPL. 1.
Ikeda, Naoshi ; Nohdo, Shinichiro ; Yamada, Yasusada ; Takahashi, Eri ; Kohn, Kay. / Charge ordering of LuFe2O4 observed by an anomalous X-ray dispersion. In: Journal of the Korean Physical Society. 1998 ; Vol. 32, No. SUPPL. 1.
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