Shvartsman, V. V. and Kholkin, Andrei L. and Verdier, Cyril and 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, (9), 98. pp. 094109-1, ISSN 00218979,
[Online-Edition: http://dx.doi.org/10.1063/1.2126782],
[Article]
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.
| Item Type: | Article |
|---|---|
| Erschienen: | 2005 |
| Creators: | Shvartsman, V. V. and Kholkin, Andrei L. and Verdier, Cyril and Lupascu, Doru C. |
| Title: | Fatigue-induced evolution of domain structure in ferroelectric lead zirconate titanate ceramics investigated by piezoresponse force microscopy |
| Language: | English |
| 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. |
| Journal or Publication Title: | Journal of Applied Physics |
| Journal volume: | 98 |
| Number: | 9 |
| Uncontrolled Keywords: | PB(ZR,TI)O-3 THIN-FILMS; POLARIZATION FATIGUE; ELECTRIC FATIGUE; SUPPRESSION; ORIENTATION; RELAXATION; CAPACITORS |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties > Subproject D1: Mesoscopic and macroscopic fatigue in doped ferroelectric ceramics DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue Zentrale Einrichtungen DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres DFG-Collaborative Research Centres (incl. Transregio) |
| Date Deposited: | 18 May 2011 15:20 |
| Official URL: | http://dx.doi.org/10.1063/1.2126782 |
| Additional Information: | SFB 595 D1 |
| Identification Number: | doi:10.1063/1.2126782 |
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