Structural, magnetic, and ferroelectric properties of CuFe 1-xMnxO2

K. Hayashi, R. Fukatsu, T. Nozaki, Y. Miyazaki, T. Kajitani

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)


We have investigated the structural, magnetic, and ferroelectric properties of Mn-substituted CuFeO2, i.e., CuFe1-xMn xO2 (0≤x≤0.2). CuFeO2 is a typical frustrated triangular lattice antiferromagnet due to its Fe3+ triangular configuration. Although the lattice constants and atomic bond distances do not change in the range of 0≤x≤0.2, structural modulation introduced by the Mn substitution affects the magnetic and dielectric properties. A multiferroic phase, where the antiferromagnetism and ferroelectricity coexist, is found in a narrow range of 0.01≤x≤0.1. The origin of the multiferroic characteristics is discussed in terms of the partial release of the spin frustration.

Original languageEnglish
Article number064418
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number6
Publication statusPublished - 2013 Feb 20

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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