title: Electric-field-induced phase transitions in co-doped Pb(Zr1-xTix)O3at the morphotropic phase boundary.
abstract: The strain- and polarization-electric field behavior was characterized at room temperature for Pb0.98Ba0.01(Zr1-xTix)0.98Nb0.02O3, 0.40 ⩽x⩽ 0.60. The investigated compositions were located in the vicinity of the morphotropic phase boundary, giving insight into the influence of crystal structure on the hysteretic ferroelectric behavior. The remanent strain of particular compositions is shown to be larger than theoretically allowed by ferroelectric switching alone, indicating the presence of additional remanent strain mechanisms. A phenomenological free energy analysis was used to simulate the effect of an applied electric field on the initial equilibrium phase. It is shown that electric-field-induced phase transitions in polycrystalline ferroelectrics can account for the experimental observations. The experimental and simulation results are contrasted to neutron diffraction measurements performed on representative compositions in the virgin and remanent states.
authors.affiliation: Institute of Materials Science, Technische Universität Darmstadt, D-64287, Darmstadt, Germany; Graduate School of Computational Engineering, Technische Universität Darmstadt, D-64287, Darmstadt, Germany.
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Franzbach
authors.affiliation: Institute of Materials Science, Technische Universität Darmstadt, D-64287, Darmstadt, Germany.
authors.forename: Yo-Han
authors.initials: YH
authors.lastname: Seo
authors.affiliation: Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Studer
authors.affiliation: School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia.
authors.forename: Yichi
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia.
authors.forename: Julia
authors.initials: J
authors.lastname: Glaum
authors.affiliation: School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia.
authors.forename: John E
authors.initials: JE
authors.lastname: Daniels
authors.affiliation: Institute of Materials Science, Technische Universität Darmstadt, D-64287, Darmstadt, Germany; Jožef Stefan Institute, Jamova cesta 39, Si-1000, Ljubljana, Slovenia.
authors.forename: Jurij
authors.initials: J
authors.lastname: Koruza
authors.affiliation: Jožef Stefan Institute, Jamova cesta 39, Si-1000, Ljubljana, Slovenia.
authors.forename: Andreja
authors.initials: A
authors.lastname: Benčan
authors.affiliation: Jožef Stefan Institute, Jamova cesta 39, Si-1000, Ljubljana, Slovenia.
authors.forename: Barbara
authors.initials: B
authors.lastname: Malič
authors.affiliation: Institute of Materials Science, Technische Universität Darmstadt, D-64287, Darmstadt, Germany.
authors.forename: Kyle G
authors.initials: KG
authors.lastname: Webber
keywords: Ferroelectricity; Field induced phase transitions; Morphotropic phase boundary; PZT