Dielectric relaxation of the Ca sub(2)MnO sub(4-[delta]) system

Dielectric relaxation of the Ca sub(2)MnO sub(4-[delta]) system

Dielectric properties were measured in the frequency range from 40 Hz to 2 MHz and temperatures between 100 and 360 K using impedance spectroscopy technique. A single relaxation process was observed for [delta] = 0.00, but a second relaxation behavior can be identified for intermediate values of [de...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of alloys and compounds 2013-11, Vol.577, p.S483-S487
Hauptverfasser: Chihaoui, N, Bejar, M, Dhahri, E, Valente, M A, Graca, M PF, Costa, L C
Format: Artikel
Sprache:eng
Schlagworte:
Alloys
Deltas
Dielectric properties
Dielectric relaxation
Frequency ranges
Impedance spectroscopy
Relaxation time
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Dielectric properties were measured in the frequency range from 40 Hz to 2 MHz and temperatures between 100 and 360 K using impedance spectroscopy technique. A single relaxation process was observed for [delta] = 0.00, but a second relaxation behavior can be identified for intermediate values of [delta]. For both processes the Cole-Cole relaxation model can be used to explain the results, corresponding to a distribution of relaxation times.
ISSN:0925-8388
DOI:10.1016/j.jallcom.2012.03.039