Huan, Yu ; Wang, Xiaohui ; Li, Longtu ; Koruza, Jurij (2015)
Strong domain configuration dependence of the nonlinear dielectric
response in (K,Na)NbO3-based ceramics.
In: Applied Physics Letters, 107 (20)
doi: 10.1063/1.4936165
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The nonlinear dielectric response in (Na0.52 K0.4425 Li0.0375)(Nb0.92-x Tax Sb0.08)O3 ceramics with different amounts of Ta was measured using subcoercive electric fields and quantified by the Rayleigh model. The irreversible extrinsic contribution, mainly caused by the irreversible domain wall translation, was strongly dependent on the domain configuration. The irreversible extrinsic contributions remained approximately the same within the single-phase regions, either orthorhombic or tetragonal, due to the similar domain morphology. However, in the polymorphic phase transition region, the domain wall density was increased by minimized domain size, as observed by transmission electron microscopy. This resulted in constrained domain wall motion due to selfclamping and reduced the irreversible extrinsic contribution. @2015 AIP Publishing LLC.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Huan, Yu ; Wang, Xiaohui ; Li, Longtu ; Koruza, Jurij |
| Art des Eintrags: | Bibliographie |
| Titel: | Strong domain configuration dependence of the nonlinear dielectric response in (K,Na)NbO3-based ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 26 November 2015 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics Letters |
| Jahrgang/Volume einer Zeitschrift: | 107 |
| (Heft-)Nummer: | 20 |
| DOI: | 10.1063/1.4936165 |
| Kurzbeschreibung (Abstract): | The nonlinear dielectric response in (Na0.52 K0.4425 Li0.0375)(Nb0.92-x Tax Sb0.08)O3 ceramics with different amounts of Ta was measured using subcoercive electric fields and quantified by the Rayleigh model. The irreversible extrinsic contribution, mainly caused by the irreversible domain wall translation, was strongly dependent on the domain configuration. The irreversible extrinsic contributions remained approximately the same within the single-phase regions, either orthorhombic or tetragonal, due to the similar domain morphology. However, in the polymorphic phase transition region, the domain wall density was increased by minimized domain size, as observed by transmission electron microscopy. This resulted in constrained domain wall motion due to selfclamping and reduced the irreversible extrinsic contribution. @2015 AIP Publishing LLC. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 26 Nov 2015 09:58 |
| Letzte Änderung: | 19 Okt 2020 11:40 |
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