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In situ neutron diffraction study of electric field induced structural transitions in lanthanum doped lead zirconate titanate

Hinterstein, Manuel and Hoelzel, Markus and Kungl, Hans and Hoffmann, Michael J. and Ehrenberg, Helmut and Fuess, Hartmut (2011):
In situ neutron diffraction study of electric field induced structural transitions in lanthanum doped lead zirconate titanate.
In: Zeitschrift für Kristallographie, pp. 155-162, 226, (2), ISSN 0044-2968, [Online-Edition: http://dx.doi.org/10.1524/zkri.2011.1338],
[Article]

Abstract

The structural reaction of La-doped PbZr1�xTixO3 (PLZT) with x ¼ 0:44, 0.46 and 0.475 to an electric field was investigated by in situ neutron diffraction. The induced structural changes and the anisotropic displacement parameters were analysed. While the composition with a high Ti content shows a trend to tetragonal characteristics, PLZT with a low Ti content exhibits a rhombohedral response to the applied electric field. The intermediate composition with x ¼ 0:46 appears rhombohedral in the unpoled state. Under the influence of an applied electric field, however, the response is similar to tetragonal PLZT (x ¼ 0:475). With the investigated compositions the field induced processes are characterised. In the tetragonal composition the field dependent variation of the tetragonal lattice distortion is most pronounced. In rhombohedral PLZT (x ¼ 0:44) the pseudorhombohedral lattice distortion exhibits the most significant changes. In the intermediate composition primarily atomic displacements are involved. Hence, a systematic change of the response to an applied electric field is observed while crossing the morphotropic phase boundary.

Item Type: Article
Erschienen: 2011
Creators: Hinterstein, Manuel and Hoelzel, Markus and Kungl, Hans and Hoffmann, Michael J. and Ehrenberg, Helmut and Fuess, Hartmut
Title: In situ neutron diffraction study of electric field induced structural transitions in lanthanum doped lead zirconate titanate
Language: English
Abstract:

The structural reaction of La-doped PbZr1�xTixO3 (PLZT) with x ¼ 0:44, 0.46 and 0.475 to an electric field was investigated by in situ neutron diffraction. The induced structural changes and the anisotropic displacement parameters were analysed. While the composition with a high Ti content shows a trend to tetragonal characteristics, PLZT with a low Ti content exhibits a rhombohedral response to the applied electric field. The intermediate composition with x ¼ 0:46 appears rhombohedral in the unpoled state. Under the influence of an applied electric field, however, the response is similar to tetragonal PLZT (x ¼ 0:475). With the investigated compositions the field induced processes are characterised. In the tetragonal composition the field dependent variation of the tetragonal lattice distortion is most pronounced. In rhombohedral PLZT (x ¼ 0:44) the pseudorhombohedral lattice distortion exhibits the most significant changes. In the intermediate composition primarily atomic displacements are involved. Hence, a systematic change of the response to an applied electric field is observed while crossing the morphotropic phase boundary.

Journal or Publication Title: Zeitschrift für Kristallographie
Volume: 226
Number: 2
Uncontrolled Keywords: Piezoceramic / Ferroelectrics / Lead zirconate titanate / Neutron diffraction / Electric field
Divisions: 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 > 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
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > T - Transfer projects > Subproject T2: Influence of PbO stoichiometry on series production of PZT and multilayer actuators
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > T - Transfer projects
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 31 Jan 2012 14:17
Official URL: http://dx.doi.org/10.1524/zkri.2011.1338
Additional Information:

SFB 595 Cooperation B3, T2

Identification Number: doi:10.1524/zkri.2011.1338
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