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Morphotropic Phase Boundary in the Pb-Free (1 − x)BiTi3/8Fe2/8Mg3/8O3–xCaTiO3 System: Tetragonal Polarization and Enhanced Electromechanical Properties

DOI: 10.1002/adma.201405452 DOI Help
PMID: 25820793 PMID Help

Authors: Pranab Mandal (University of Liverpool) , Alicia Manjon Sanz (University of Liverpool) , Alex Corkett (University of Liverpool) , Tim Comyn (University of Leeds) , Karl Dawson (University of Liverpool) , Timothy Stevenson (University of Leeds) , James Bennett (University of Leeds) , Leonard F. Henrichs (University of Leeds) , Andrew J. Bell (University of Leeds) , Eiji Nishibori (Structural Materials Science Laboratory, Sayo-gun, Hyogo, Japan) , Masaki Takata (Structural Materials Science Laboratory, Sayo-gun, Hyogo, Japan) , Marco Zanella (University of Liverpool) , Michelle Dolgos (University of Liverpool) , Umut Adem (University of Liverpool) , Xinming Wan (University of Liverpool) , Michael J. Pitcher (University of Liverpool) , Simon Romani (University of Liverpool) , T. Thao Tran (University of Houston) , John Claridge (University of Liverpool) , Matthew Rosseinsky (University of Liverpool)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Advanced Materials

State: Published (Approved)
Published: March 2015
Diamond Proposal Number(s): 9282

Abstract: Lead-free bismuth-based perovskite oxides with polarization directed along the [001]p primitive perovskite unit cell edge, analogous to tetragonal PbTiO3, are synthesized at ambient pressure. Enhanced piezoelectric properties, large polarizations, and high depolarization temperatures are observed in the wide morphotropic phase boundary region formed with a rhombohedral phase, with up to 92.5% Bi on the perovskite A site.

Journal Keywords: Ferroelectric; Morphotropic Phase Boundaries; Pb-Free; Perovskites; Tetragonal

Subject Areas: Chemistry, Materials

Instruments: I11-High Resolution Powder Diffraction

Other Facilities: BL44B2 at SPring-8