Valence fluctuation and polarization fluctuation in LuFe2O4

Yasusada Yamada, Naoshi Ikeda

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The anomalous dielectric behavior of mixed valence system LuFe2O4 is investigated. It has been shown that LuFe2O4 undergoes successive phase transitions associated with ordering of charge configuration of Fe ion following the sequence of disorder → 2D-CDW (charge density wave) → 3D-CDW state. The stable 3D-CDW phase is characterized by a long period incommensurate antiferroelectric phase. The anomalously high dielectric constant at lower temperature as well as its frequency dependence is discussed in connection with the motion of the antiphase domain boundaries.

Original languageEnglish
Pages (from-to)S1-S4
JournalJournal of the Korean Physical Society
Volume32
Issue numberSUPPL. 1
Publication statusPublished - Feb 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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