Journal
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
Volume 26, Issue -, Pages -Publisher
UNIV FED SAO CARLOS, DEPT ENGENHARIA MATERIALS
DOI: 10.1590/1980-5373-MR-2022-0061
Keywords
Relaxorferroelectrics; Curie temperature; polar nanoregions; random electric fields; acoustic emission
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9/65/35 PLZT relaxor was investigated under a biased electric field using the acoustic emission method. It was observed that the temperature at which the dielectric constant reaches its maximum forms a V-shape and is completely within the ergodic phase. Additionally, the threshold electric field was found to be approximately the same as that in PMN-0.24PT and PFN-0.02PT relaxors. The possible explanation for these phenomena is discussed based on the properties of incorporated ions.
9/65/35 PLZT relaxor was studied under a bias electric field using the acoustic emission method. It was established that the temperature of smeared dielectric constant maximum exhibits the V-shape, lying fully within the ergodic phase, as well as that the threshold electric field is found to be approximately the same as in both PMN-0.24PT and PFN-0.02PT relaxors. A reason of the latter phenomena is discussed from the viewpoint of incorporated ions properties.
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