Zhukov, Sergey ; Genenko, Yuri A. ; Koruza, Jurij ; Schultheiß, Jan ; Seggern, Heinz von ; Sakamoto, Wataru ; Ichikawa, Hiroki ; Murata, Tatsuro ; Hayashi, Koichiro ; Yogo, Toshinobu (2016)
Effect of texturing on polarization switching dynamics in ferroelectric ceramics.
In: Applied Physics Letters, 108 (1)
doi: 10.1063/1.4939684
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Highly (100),(001)-oriented (Ba0.85Ca0.15)TiO3 (BCT) lead-free piezoelectric ceramics were fabricated by the reactive templated grain growth method using a mixture of plate-like CaTiO3 and BaTiO3 particles. Piezoelectric properties of the ceramics with a high degree of texture were found to be considerably enhanced compared with the BCT ceramics with a low degree of texture. With increasing the Lotgering factor from 26% up to 94%, the piezoelectric properties develop towards the properties of a single crystal. The dynamics of polarization switching was studied over a broad time domain of 8 orders of magnitude and was found to strongly depend on the degree of orientation of the ceramics. Samples with a high degree of texture exhibited 2-3 orders of magnitude faster polarization switching, as compared with the ones with a low degree of texture. This was rationalized by means of the Inhomogeneous Field Mechanism model as a result of the narrower statistical distribution of the local electric field values in textured media, which promotes a more coherent switching process. The extracted microscopic parameters of switching revealed a decrease of the critical nucleus energy in systems with a high degree of texture providing more favorable switching conditions related to the enhanced ferroelectric properties of the textured material. (C) 2016 AIP Publishing LLC.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Zhukov, Sergey ; Genenko, Yuri A. ; Koruza, Jurij ; Schultheiß, Jan ; Seggern, Heinz von ; Sakamoto, Wataru ; Ichikawa, Hiroki ; Murata, Tatsuro ; Hayashi, Koichiro ; Yogo, Toshinobu |
| Art des Eintrags: | Bibliographie |
| Titel: | Effect of texturing on polarization switching dynamics in ferroelectric ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 4 Januar 2016 |
| Verlag: | American Institute of Physics, Melville, NY, USA |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics Letters |
| Jahrgang/Volume einer Zeitschrift: | 108 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1063/1.4939684 |
| URL / URN: | https://doi.org/10.1063/1.4939684 |
| Kurzbeschreibung (Abstract): | Highly (100),(001)-oriented (Ba0.85Ca0.15)TiO3 (BCT) lead-free piezoelectric ceramics were fabricated by the reactive templated grain growth method using a mixture of plate-like CaTiO3 and BaTiO3 particles. Piezoelectric properties of the ceramics with a high degree of texture were found to be considerably enhanced compared with the BCT ceramics with a low degree of texture. With increasing the Lotgering factor from 26% up to 94%, the piezoelectric properties develop towards the properties of a single crystal. The dynamics of polarization switching was studied over a broad time domain of 8 orders of magnitude and was found to strongly depend on the degree of orientation of the ceramics. Samples with a high degree of texture exhibited 2-3 orders of magnitude faster polarization switching, as compared with the ones with a low degree of texture. This was rationalized by means of the Inhomogeneous Field Mechanism model as a result of the narrower statistical distribution of the local electric field values in textured media, which promotes a more coherent switching process. The extracted microscopic parameters of switching revealed a decrease of the critical nucleus energy in systems with a high degree of texture providing more favorable switching conditions related to the enhanced ferroelectric properties of the textured material. (C) 2016 AIP Publishing LLC. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Elektronische Materialeigenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 27 Nov 2017 12:21 |
| Letzte Änderung: | 13 Aug 2021 14:08 |
| PPN: | |
| Sponsoren: | This work was supported by the Deutsche Forschungsgemeinschaft (DFG) Grants Nos. SE 941/17-1, GE 1171/7-1, and KO 5100/1-1. |
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