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RESEARCH PRODUCT
Dielectric properties and ac conductivities of Bi1−xSmxFeO3 ceramics
N. M.-r. AlikhanovS. A. SadykovS. N. KallaevK. BormanisAnna Kalvanesubject
PermittivityMaterials science02 engineering and technologyDielectricConductivity01 natural sciences0103 physical sciences:NATURAL SCIENCES:Physics [Research Subject Categories]Materials ChemistryElectrical and Electronic Engineering010302 applied physicsCondensed matter physicsDopingBiFeO3 ceramicsAtmospheric temperature range021001 nanoscience & nanotechnologyCondensed Matter PhysicsThermal conductionElectronic Optical and Magnetic Materialsdielectric propertiesControl and Systems EngineeringCeramics and CompositesDielectric lossconductivity0210 nano-technologyNéel temperaturedescription
Dielectric permittivity, dielectric losses and ac-conductivity of polycrystalline Bi1−xSmxFeO3 (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) and at a certain temperature Tm, depending on the composition Bi1−xSmxFeO3, the conductivity reaches a maximum. The results are discussed with reference to the model of correlated barrier hopping.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-12 | Integrated Ferroelectrics |