Dipole glass behavior of RFe2O4

Dipole glass behavior of RFe2O4

We report low frequency dielectric dispersions of ErFe 2 O 4 in which equal numbers of Fe 2+ and Fe 3+ 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 be...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Ferroelectrics 1997-01, Vol.190 (1), p.191-196
Hauptverfasser: Ikeda, N., Odaka, K., Takahashi, E., Kohn, K., Siratori, K.
Format: Artikel
Sprache:eng
Schlagworte:
Dielectric Relaxation
Dipole glass
ErFe
RFe
Spin glass
Verwey transition
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We report low frequency dielectric dispersions of ErFe 2 O 4 in which equal numbers of Fe 2+ and Fe 3+ 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 Fe 2+ and Fe 3+ ions.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150199708014115