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In situ synchrotron diffraction investigation of morphotropic Pb[Zr1−xTix]O3 under an applied electric field

Schönau, Kristin and Knapp, Michael and Kungl, Hans and Hoffmann, Michael J. and Fuess, Hartmut (2007):
In situ synchrotron diffraction investigation of morphotropic Pb[Zr1−xTix]O3 under an applied electric field.
In: Physical Review B, pp. 144112-1-144112-12, 76, (14), ISSN 1098-0121,
[Online-Edition: http://dx.doi.org/10.1103/PhysRevB.76.144112],
[Article]

Abstract

For understanding the reaction of the domain structure and crystallographic structure of ferroelectric lead zirconate titanate, Pb[Zr1−xTix]O3, to an applied electric field and its high piezoelectric properties for compositions in the vicinity of the morphotropic phase boundary (MPB), investigations of structural changes under in situ conditions are of great importance. As we have shown in recent studies [L. A. Schmitt et al., J. Appl. Phys. 101, 074107 (2007); K. A. Schönau et al., Phys. Rev. B 75, 184117 (2007)] the domain structure miniaturizes at the MPB. This nanodomain structure and its stability field are crucial for the character of the poling behavior of the material. In situ electric field synchrotron powder diffraction studies across the entire compositional range of the MPB show changes in phase fractions, domain structure, and phase transitions under electric field dependent on the nanodomain content. For a certain range of tetragonal c∕a-ratio the nanodomains are stabilized, straining tetragonal microdomains under electric field, while with further decreasing c∕a-ratio at higher Zr contents they are transformed into a structure associable with rhombohedral microdomains.

Item Type: Article
Erschienen: 2007
Creators: Schönau, Kristin and Knapp, Michael and Kungl, Hans and Hoffmann, Michael J. and Fuess, Hartmut
Title: In situ synchrotron diffraction investigation of morphotropic Pb[Zr1−xTix]O3 under an applied electric field
Language: English
Abstract:

For understanding the reaction of the domain structure and crystallographic structure of ferroelectric lead zirconate titanate, Pb[Zr1−xTix]O3, to an applied electric field and its high piezoelectric properties for compositions in the vicinity of the morphotropic phase boundary (MPB), investigations of structural changes under in situ conditions are of great importance. As we have shown in recent studies [L. A. Schmitt et al., J. Appl. Phys. 101, 074107 (2007); K. A. Schönau et al., Phys. Rev. B 75, 184117 (2007)] the domain structure miniaturizes at the MPB. This nanodomain structure and its stability field are crucial for the character of the poling behavior of the material. In situ electric field synchrotron powder diffraction studies across the entire compositional range of the MPB show changes in phase fractions, domain structure, and phase transitions under electric field dependent on the nanodomain content. For a certain range of tetragonal c∕a-ratio the nanodomains are stabilized, straining tetragonal microdomains under electric field, while with further decreasing c∕a-ratio at higher Zr contents they are transformed into a structure associable with rhombohedral microdomains.

Journal or Publication Title: Physical Review B
Volume: 76
Number: 14
Divisions: DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
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 > 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
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B3: Structure Characterization of Piezoelectric Ceramics With Respect to Electrical Fatigue
Date Deposited: 27 Jul 2011 11:44
Official URL: http://dx.doi.org/10.1103/PhysRevB.76.144112
Additional Information:

SFB 595 Cooperation A2, B3

Identification Number: doi:10.1103/PhysRevB.76.144112
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