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Microstructural Characterization of the Manganese Functional Center Site in PbTiO3Ferroelectrics — Multi-Frequency Electron Paramagnetic Resonance and Newman Superposition Model Analysis

Erdem, Emre and Drahus, Michael and Eichel, Rüdiger-A. and Ozarowski, Andrew and van Tol, Johan and Brunel, Louis Claude (2008):
Microstructural Characterization of the Manganese Functional Center Site in PbTiO3Ferroelectrics — Multi-Frequency Electron Paramagnetic Resonance and Newman Superposition Model Analysis.
In: Ferroelectrics, pp. 39-49, 363, (1), ISSN 0015-0193, [Online-Edition: http://dx.doi.org/10.1080/00150190802014396],
[Article]

Abstract

By utilizing multi-frequency electron paramagnetic resonance (EPR) spectroscopy, the manganese functional-centre site in manganese-modified polycrystalline lead titanate (PbTiO 3 ) was studied. Isovalent Mn 4+ ions were identified as substituting for Ti 4+ at the B-site of the perovskite ABO 3 lattice. Based on Newman superposition-model calculations, it could be shown that the value of the experimentally obtained fine-structure (FS) parameter B 2 0 is only consistent with a microstructure in which the Mn x Ti functional center follows the Ti x Ti cooperative displacement in the ferroelectric phase.

Item Type: Article
Erschienen: 2008
Creators: Erdem, Emre and Drahus, Michael and Eichel, Rüdiger-A. and Ozarowski, Andrew and van Tol, Johan and Brunel, Louis Claude
Title: Microstructural Characterization of the Manganese Functional Center Site in PbTiO3Ferroelectrics — Multi-Frequency Electron Paramagnetic Resonance and Newman Superposition Model Analysis
Language: English
Abstract:

By utilizing multi-frequency electron paramagnetic resonance (EPR) spectroscopy, the manganese functional-centre site in manganese-modified polycrystalline lead titanate (PbTiO 3 ) was studied. Isovalent Mn 4+ ions were identified as substituting for Ti 4+ at the B-site of the perovskite ABO 3 lattice. Based on Newman superposition-model calculations, it could be shown that the value of the experimentally obtained fine-structure (FS) parameter B 2 0 is only consistent with a microstructure in which the Mn x Ti functional center follows the Ti x Ti cooperative displacement in the ferroelectric phase.

Journal or Publication Title: Ferroelectrics
Volume: 363
Number: 1
Uncontrolled Keywords: Lead titanate ferroelectrics; manganese doping; multi-frequency EPR; Newman superpostion model
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 10:48
Official URL: http://dx.doi.org/10.1080/00150190802014396
Additional Information:

SFB 595 B1

Identification Number: doi:10.1080/00150190802014396
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