Polarization processes in BaBi2Nb2O9 and SrBi2Ta2O9 ceramics in infralow-frequency fields |
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| Authors: | A. I. Burkhanov Yu. V. Kochergin K. Bormanis A. Kalvane |
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| Affiliation: | 1.Volgograd State University of Architectural and Civil Engineering,Volgograd,Russia;2.Institute of Solid State Physics (University of Latvia),Riga,Latvia |
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| Abstract: | The dielectric nonlinearity in BaBi2Nb2O9 and SrBi2Ta2O9 layered ceramics was studied by measuring their polarization loops and reverse dependences of permittivity. It was shown that the features of the dielectric response of BaBi2Nb2O9 and SrBi2Ta2O9 in strong fields can be explained by glass-like properties and the contribution of the domain structure of the ferroelectric material to repolarization processes, respectively. |
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