Shvartsman, V. V. ; Kholkin, Andrei L. ; Verdier, Cyril ; Lupascu, Doru C. (2005)
Fatigue-induced evolution of domain structure in ferroelectric lead zirconate titanate ceramics investigated by piezoresponse force microscopy.
In: Journal of Applied Physics, 98 (9)
doi: 10.1063/1.2126782
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The evolution of the domain structure in lead zirconate titanate ceramics in the course of polarization fatigue is investigated by piezoresponse force microscopy. It is found that fatigue results in a strong modification of the domain structure. The domain patterns initially consisting of mainly 180 degrees domains split into fine ferroelastic domains to relieve the mechanical stresses arising due to the continuous polarization switching. The observed distorted domain walls (or "wavy" domain patterns) are attributed to clamping by defect agglomerates. The biggest concentration of clamped domains is found in grains close to the electrode interface signifying that these are most damaged by fatigue. Furthermore, a preferred polarization orientation is observed near the electrodes. Postannealing of fatigued samples promotes the partial recovery of the initial domain structure. The results indicate the importance of nearby electrode grains in the polarization switching in polycrystalline materials.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2005 |
| Autor(en): | Shvartsman, V. V. ; Kholkin, Andrei L. ; Verdier, Cyril ; Lupascu, Doru C. |
| Art des Eintrags: | Bibliographie |
| Titel: | Fatigue-induced evolution of domain structure in ferroelectric lead zirconate titanate ceramics investigated by piezoresponse force microscopy |
| Sprache: | Englisch |
| Publikationsjahr: | November 2005 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 98 |
| (Heft-)Nummer: | 9 |
| DOI: | 10.1063/1.2126782 |
| Kurzbeschreibung (Abstract): | The evolution of the domain structure in lead zirconate titanate ceramics in the course of polarization fatigue is investigated by piezoresponse force microscopy. It is found that fatigue results in a strong modification of the domain structure. The domain patterns initially consisting of mainly 180 degrees domains split into fine ferroelastic domains to relieve the mechanical stresses arising due to the continuous polarization switching. The observed distorted domain walls (or "wavy" domain patterns) are attributed to clamping by defect agglomerates. The biggest concentration of clamped domains is found in grains close to the electrode interface signifying that these are most damaged by fatigue. Furthermore, a preferred polarization orientation is observed near the electrodes. Postannealing of fatigued samples promotes the partial recovery of the initial domain structure. The results indicate the importance of nearby electrode grains in the polarization switching in polycrystalline materials. |
| Freie Schlagworte: | PB(ZR,TI)O-3 THIN-FILMS; POLARIZATION FATIGUE; ELECTRIC FATIGUE; SUPPRESSION; ORIENTATION; RELAXATION; CAPACITORS |
| Zusätzliche Informationen: | SFB 595 D1 |
| 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 DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > D - Bauteileigenschaften > Teilprojekt D1: Mesoskopische und makroskopische Ermüdung in dotierten ferroelektrischen Keramiken DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > D - Bauteileigenschaften DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) |
| Hinterlegungsdatum: | 18 Mai 2011 15:20 |
| Letzte Änderung: | 05 Mär 2013 09:47 |
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