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Manganese-doped (1−x)BiScO_{3}–xPbTiO_{3} high-temperature ferroelectrics: Defect structure and mechanism of enhanced electric resistivity

Drahus, Michael D. and Jakes, Peter and Erdem, Emre and Schaab, Silke and Chen, Jun and Ozerov, Mykhaylo and Zvyagin, Sergei and Eichel, Rüdiger-A. :
Manganese-doped (1−x)BiScO_{3}–xPbTiO_{3} high-temperature ferroelectrics: Defect structure and mechanism of enhanced electric resistivity.
[Online-Edition: http://dx.doi.org/10.1103/PhysRevB.84.064113]
In: Physical Review B, 84 (6) 064113-1-064113-8. ISSN 1098-0121
[Article] , (2011)
Note:

SFB 595 Cooperation B1, D1

Official URL: http://dx.doi.org/10.1103/PhysRevB.84.064113

Abstract

The effect of multivalency manganese doping on the defect structure and enhanced electrical resistivity is studied for the high-temperature piezoelectric (1−x)BiScO3–xPbTiO3 (BSPT) solid-solution system by means of multifrequency electron paramagnetic resonance spectroscopy combined with conductivity measurements. The results show that manganese is rather incorporated on a scandium than a titanium site as an isovalent substitute (MnSc×) instead of acceptor-type centers, such as MnTi′, MnTi′′, or MnSc′. The enhanced electric resistivity is found being on the one hand due to the trapping of conduction electrons at the manganese functional center sites (MnSc×+e′MnSc′). On the other hand, through the formation of (MnSc′−VO••)• defect complexes the ionic conductivity is reduced. Concerning the overall mechanism of charge compensation in that material, both kinds of defects mutually compensate.

Item Type: Article
Erschienen: 2011
Creators: Drahus, Michael D. and Jakes, Peter and Erdem, Emre and Schaab, Silke and Chen, Jun and Ozerov, Mykhaylo and Zvyagin, Sergei and Eichel, Rüdiger-A.
Title: Manganese-doped (1−x)BiScO_{3}–xPbTiO_{3} high-temperature ferroelectrics: Defect structure and mechanism of enhanced electric resistivity
Language: English
Abstract:

The effect of multivalency manganese doping on the defect structure and enhanced electrical resistivity is studied for the high-temperature piezoelectric (1−x)BiScO3–xPbTiO3 (BSPT) solid-solution system by means of multifrequency electron paramagnetic resonance spectroscopy combined with conductivity measurements. The results show that manganese is rather incorporated on a scandium than a titanium site as an isovalent substitute (MnSc×) instead of acceptor-type centers, such as MnTi′, MnTi′′, or MnSc′. The enhanced electric resistivity is found being on the one hand due to the trapping of conduction electrons at the manganese functional center sites (MnSc×+e′MnSc′). On the other hand, through the formation of (MnSc′−VO••)• defect complexes the ionic conductivity is reduced. Concerning the overall mechanism of charge compensation in that material, both kinds of defects mutually compensate.

Journal or Publication Title: Physical Review B
Volume: 84
Number: 6
Divisions: 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 > 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 > D - Component properties > Subproject D1: Mesoscopic and macroscopic fatigue in doped ferroelectric ceramics
11 Department of Materials and Earth Sciences > Material Science
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 > D - Component properties
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
11 Department of Materials and Earth Sciences
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 29 Aug 2011 08:39
Official URL: http://dx.doi.org/10.1103/PhysRevB.84.064113
Additional Information:

SFB 595 Cooperation B1, D1

Identification Number: doi:10.1103/PhysRevB.84.064113
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