Dipole glass behavior of RFe2O4

N. Ikeda; K. Odaka; E. Takahashi; K. Kohn; K. Siratori

doi:10.1080/00150199708014115

Dipole glass behavior of RFe₂O₄

N. Ikeda, K. Odaka, E. Takahashi, K. Kohn, K. Siratori

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

We report low frequency dielectric dispersions of ErFe₂O₄ in which equal numbers of Fe²⁺ and Fe³⁺ ions occupy the sites on a triangular lattice. The first dispersion observed between 200 K and 300 K is explained qualitatively on a model that spontaneous polarization is present in the crystal below the Verwey transition. The second dispersion at higher temperatures is characterized by a few glass-like features. It was interpreted by successive freezing of the local dipole moments accompanied by short-range ordering of Fe²⁺ and Fe³⁺ ions.

Original language	English
Pages (from-to)	191-196
Number of pages	6
Journal	Ferroelectrics
Volume	190
Issue number	1-4
DOIs	https://doi.org/10.1080/00150199708014115
Publication status	Published - Jan 1 1997
Externally published	Yes

Keywords

Dielectric Relaxation
Dipole glass
RFeO ErFeO.
Spin glass
Verwey transition

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150199708014115

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title = "Dipole glass behavior of RFe2O4",

abstract = "We report low frequency dielectric dispersions of ErFe2O4 in which equal numbers of Fe2+ and Fe3+ ions occupy the sites on a triangular lattice. The first dispersion observed between 200 K and 300 K is explained qualitatively on a model that spontaneous polarization is present in the crystal below the Verwey transition. The second dispersion at higher temperatures is characterized by a few glass-like features. It was interpreted by successive freezing of the local dipole moments accompanied by short-range ordering of Fe2+ and Fe3+ ions.",

keywords = "Dielectric Relaxation, Dipole glass, RFeO ErFeO., Spin glass, Verwey transition",

author = "N. Ikeda and K. Odaka and E. Takahashi and K. Kohn and K. Siratori",

year = "1997",

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T1 - Dipole glass behavior of RFe2O4

AU - Ikeda, N.

AU - Odaka, K.

AU - Takahashi, E.

AU - Kohn, K.

AU - Siratori, K.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - We report low frequency dielectric dispersions of ErFe2O4 in which equal numbers of Fe2+ and Fe3+ ions occupy the sites on a triangular lattice. The first dispersion observed between 200 K and 300 K is explained qualitatively on a model that spontaneous polarization is present in the crystal below the Verwey transition. The second dispersion at higher temperatures is characterized by a few glass-like features. It was interpreted by successive freezing of the local dipole moments accompanied by short-range ordering of Fe2+ and Fe3+ ions.

AB - We report low frequency dielectric dispersions of ErFe2O4 in which equal numbers of Fe2+ and Fe3+ ions occupy the sites on a triangular lattice. The first dispersion observed between 200 K and 300 K is explained qualitatively on a model that spontaneous polarization is present in the crystal below the Verwey transition. The second dispersion at higher temperatures is characterized by a few glass-like features. It was interpreted by successive freezing of the local dipole moments accompanied by short-range ordering of Fe2+ and Fe3+ ions.

KW - Dielectric Relaxation

KW - Dipole glass

KW - RFeO ErFeO.

KW - Spin glass

KW - Verwey transition

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