Low frequency nonlinearity in layered ferroelectrics BaBi2Nb2O9 and SrBi2Ta2O9

Low frequency nonlinearity in layered ferroelectrics BaBi2Nb2O9 and SrBi2Ta2O9

The dielectric nonlinearity in layered ferroelectric ceramics of BaBi 2 Nb 2 O 9 and SrBi 2 Ta 2 O 9 is studied by analysing polarisation loops and measuring dielectric permittivity as a function of frequency. In case of BaBi 2 Nb 2 O 9 the system has a broad phase transition manifesting essential f...

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Bibliographische Detailangaben
Hauptverfasser: Bormanis, K, Kalvane, A, Burkhanov, A I, Kochergin, Y V
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Ceramics
dielectric response
Dielectrics
Frequency measurement
layered ferroelectrics
Permittivity
phase transition
polarisation switching
Shape
Switches
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Beschreibung
Zusammenfassung:The dielectric nonlinearity in layered ferroelectric ceramics of BaBi 2 Nb 2 O 9 and SrBi 2 Ta 2 O 9 is studied by analysing polarisation loops and measuring dielectric permittivity as a function of frequency. In case of BaBi 2 Nb 2 O 9 the system has a broad phase transition manifesting essential features of a slow relaxation of polarisation; in case of SrBi 2 Ta 2 O 9 the processes contributing to polarisation switching are driven by rearrangement of the domain structure.
ISSN:1553-5282
2159-1687
DOI:10.1109/ICSD.2010.5568257