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 |
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Pages (from-to) | 191-196 |
Number of pages | 6 |
Journal | Ferroelectrics |
Volume | 190 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - 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