Aksel, Elena ; Erdem, Emre ; Jakes, Peter ; Jones, Jacob L. ; Eichel, Rüdiger-A. (2010)
Defect structure and materials “hardening” in Fe2O3-doped [Bi0.5Na0.5]TiO3 ferroelectrics.
In: Applied Physics Letters, 97 (1)
doi: 10.1063/1.3455888
Article, Bibliographie
Abstract
The effect of Fe2O3-doping on the defect structure and piezoelectric properties of [Bi0.5Na0.5]TiO3 ceramics is studied by means of electron paramagnetic resonance spectroscopy. The results show that the Fe3+ functional centers are incorporated at the perovskite B-site, and clearly can be attributed to the formation of (FeTi′–VO••)• defect complexes with charge compensating oxygen vacancies. Correspondingly, they act as acceptors which promotes materials “hardening.”
| Item Type: | Article |
|---|---|
| Erschienen: | 2010 |
| Creators: | Aksel, Elena ; Erdem, Emre ; Jakes, Peter ; Jones, Jacob L. ; Eichel, Rüdiger-A. |
| Type of entry: | Bibliographie |
| Title: | Defect structure and materials “hardening” in Fe2O3-doped [Bi0.5Na0.5]TiO3 ferroelectrics |
| Language: | English |
| Date: | July 2010 |
| Journal or Publication Title: | Applied Physics Letters |
| Volume of the journal: | 97 |
| Issue Number: | 1 |
| DOI: | 10.1063/1.3455888 |
| Abstract: | The effect of Fe2O3-doping on the defect structure and piezoelectric properties of [Bi0.5Na0.5]TiO3 ceramics is studied by means of electron paramagnetic resonance spectroscopy. The results show that the Fe3+ functional centers are incorporated at the perovskite B-site, and clearly can be attributed to the formation of (FeTi′–VO••)• defect complexes with charge compensating oxygen vacancies. Correspondingly, they act as acceptors which promotes materials “hardening.” |
| Uncontrolled Keywords: | barium compounds, doping, ferroelectric ceramics, hardening, iron compounds, paramagnetic resonance, piezoceramics, sodium compounds, vacancies (crystal) |
| Additional Information: | SFB 595 B1 |
| Divisions: | DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B1: EPR-Investigations of defects in ferroelectric ceramic material DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation 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: | 08 Aug 2011 09:25 |
| Last Modified: | 05 Mar 2013 09:51 |
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