DIELECTRIC CHARACTERIZATION OF THE BiFe0.5CR0.5O3 CERAMICS

被引：0
|
作者：
Palaimiene, E. [1 ]
Gribauskaite, V. [1 ]
Banys, J. [1 ]
Pushkarev, A. V.
Radyush, Yu. V.
Olekhnovich, N. M.
Cardoso, J. P. V. [2 ]
Salak, A. N. [2 ]
机构：
[1] Vilnius Univ, Inst Appl Electrodynam & Telecommun, Sauletekio 3, LT-10257 Vilnius, Lithuania
[2] Univ Aveiro, CICECO Aveiro Inst Mat, Dept Mat & Ceram Engn, P-3810193 Aveiro, Portugal
来源：
LITHUANIAN JOURNAL OF PHYSICS | 2022年 / 62卷 / 04期
关键词：
ceramics; spectroscopy; ferroelectric materials; MAGNETIC-PROPERTIES; CRYSTAL;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Dielectric properties of the BiFe0.5Cr0.5O3 ceramics synthesized under high pressure were investigated in a broad frequency range (20 Hz - 1 GHz) between 200 and 500 K. It was revealed that the ceramics exhibit electrical conductivity above 300 K. Below 300 K, a dielectric dispersion caused by ferroelectric domains was observed. It was found that the conductivity follows the Almond-West law, which allowed us to deter-mine a DC contribution (sigma(DC)). From the sigma DC values obtained at different temperatures, the activation energy (E-A = 0.302 +/- 0.006 eV) was calculated using the Arrhenius law.
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页码：206 / 211
页数：6
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