Article ID Journal Published Year Pages File Type
1461197 Ceramics International 2014 6 Pages PDF
Abstract

The dielectric properties of Ba2CoNbO6 were investigated in the frequency range of 100 Hz to 10 MHz and temperature range of 300–600 K. Two relaxations and a dielectric anomaly were observed. The low-temperature relaxation is a Maxwell–Wagner relaxation caused by the surface-layer effect; the high-temperature relaxation is attributed to the hopping of oxygen vacancies. The dielectric anomaly located at 485 K is an artificial effect caused by negative capacitance associated with the transition of carriers from localized to free states.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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