Eichel, Rüdiger-A. ; Meštrić, Hrvoje ; Kungl, Hans ; Hoffmann, Michael J. (2006):
Multifrequency electron paramagnetic resonance analysis of polycrystalline gadolinium-doped PbTiO[sub 3]—Charge compensation and site of incorporation.
In: Applied Physics Letters, 88 (12), pp. 122506-1. ISSN 00036951,
[Article]
Abstract
Gadolinium(III)-modified polycrystalline lead titanate (PbTiO3) of 1.0 mol % dopant level was investigated by means of multifrequency electron paramagnetic resonance spectroscopy in order to determine sign and size of the local-environment sensitive finestructure parameter B20. The Gd3+ ions were assigned to substitute for Pb2+ at the A site of the perovskite ABO3 lattice, providing donor centers. The obtained value amounts to B20 = 0.776(2) GHz at ambient temperature and 0.860(2) GHz at 5 K, thus showing a considerable temperature dependence. A charge-compensation mechanism is proposed that is based solely on the creation of lead and oxygen vacancies.
| Item Type: | Article |
|---|---|
| Erschienen: | 2006 |
| Creators: | Eichel, Rüdiger-A. ; Meštrić, Hrvoje ; Kungl, Hans ; Hoffmann, Michael J. |
| Title: | Multifrequency electron paramagnetic resonance analysis of polycrystalline gadolinium-doped PbTiO[sub 3]—Charge compensation and site of incorporation |
| Language: | English |
| Abstract: | Gadolinium(III)-modified polycrystalline lead titanate (PbTiO3) of 1.0 mol % dopant level was investigated by means of multifrequency electron paramagnetic resonance spectroscopy in order to determine sign and size of the local-environment sensitive finestructure parameter B20. The Gd3+ ions were assigned to substitute for Pb2+ at the A site of the perovskite ABO3 lattice, providing donor centers. The obtained value amounts to B20 = 0.776(2) GHz at ambient temperature and 0.860(2) GHz at 5 K, thus showing a considerable temperature dependence. A charge-compensation mechanism is proposed that is based solely on the creation of lead and oxygen vacancies. |
| Journal or Publication Title: | Applied Physics Letters |
| Volume of the journal: | 88 |
| Issue Number: | 12 |
| Uncontrolled Keywords: | lead compounds, gadolinium, paramagnetic resonance, charge compensation, doping profiles, fine structure, vacancies (crystal) |
| Divisions: | DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis > Subproject A2: Manufacturing and characterization of PZT-ceramics with defined defect chemistry 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 > A - Synthesis 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: | 27 Jul 2011 12:42 |
| URL / URN: | http://dx.doi.org/10.1063/1.2185258 |
| Additional Information: | SFB 595 Cooperation A2, B1 |
| Identification Number: | doi:10.1063/1.2185258 |
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