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Dielectric properties and ac conductivities of Bi1−xSmxFeO3 ceramics.

Dielectric properties and ac conductivities of Bi1−xSmxFeO3 ceramics.

Authors :
Sadykov, S. A.
Kallaev, S. N.
Alikhanov, N. M.-R.
Bormanis, K.
Kalvane, A.
Source :
Integrated Ferroelectrics; 2019, Vol. 196 Issue 1, p100-104, 5p
Publication Year :
2019

Abstract

Dielectric permittivity, dielectric losses and ac-conductivity of polycrystalline Bi<subscript>1−</subscript><subscript>x</subscript>Sm<subscript>x</subscript>FeO<subscript>3</subscript> (x = 0; 0.05; 0.1; 0.15; 0.2) are measured in the frequency range 1 kHz–10 MHz and in the temperature range 25–600 °C. Anomalies have been observed at the 200 °C, 300 °C and at the Néel temperature. It has been demonstrated that doping with Sm has enhanced the dielectric properties and increased conduction in the frequency region <1 MHz. At high frequency (>1 MHz) and at a certain temperature T<subscript>m</subscript>, depending on the composition Bi<subscript>1−</subscript><subscript>x</subscript>Sm<subscript>x</subscript>FeO<subscript>3</subscript>, the conductivity reaches a maximum. The results are discussed with reference to the model of correlated barrier hopping. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10584587
Volume :
196
Issue :
1
Database :
Complementary Index
Journal :
Integrated Ferroelectrics
Publication Type :
Academic Journal
Accession number :
136909415
Full Text :
https://doi.org/10.1080/10584587.2019.1591968