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Elastic Properties and Enhanced Piezoelectric Response at Morphotropic Phase Boundaries [PDF]

Materials, 2015
The search for improved piezoelectric materials is based on the morphotropic phase boundaries (MPB) between ferroelectric phases with different crystal symmetry and available directions for the spontaneous polarization. Such regions of the composition x − T
Francesco Cordero
exaly   +5 more sources

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Large Magnetostriction from Morphotropic Phase Boundary in Ferromagnets

Physical Review Letters, 2010
For more than half of a century, morphotropic phase boundary (MPB) in ferroelectric materials has drawn constant interest because it can significantly enhance the piezoelectric properties. However, MPB has been studied merely in ferroelectric systems, not in another large class of ferroic systems, the ferromagnets.
Sen, Yang, Huixin, Bao, Chao, Zhou, Yu, Wang, Xiaobing, Ren, Yoshitaka, Matsushita, Yoshio, Katsuya, Masahiko, Tanaka, Keisuke, Kobayashi, Xiaoping, Song, Jianrong, Gao   +10 more
openaire   +2 more sources

Morphotropic phase boundary in the BNT–BT–BKT system

Ceramics International, 2012
Lead-free x Bi0.5Na0.5TiO3–y BaTiO3–z Bi0.5K0.5TiO3 piezoelectric ceramics were synthesized by a conventional solid state reaction method. The microstructure, ferroelectric and piezoelectric properties of the ceramics were investigated. Structure measurements by X-ray diffraction with Rietveld refinement have allowed us to specify more precisely the ...
Trelcat, Jean-François, Courtois, Christian, Rguiti, Mohamed, Leriche, Anne, Duvigneaud, Paul-Henri, Segato, Tiriana   +5 more
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The Factors Behind the Morphotropic Phase Boundary in Piezoelectric Perovskites

The Journal of Physical Chemistry B, 2009
The best piezoelectric materials are solid solutions in the vicinity of the steep morphotropic phase boundary (MPB) separating rhombohedral and tetragonal phases in the composition-temperature plane. A classical example is the lead zirconate titanate [Pb(Zr(x)Ti(1-x))O(3), PZT] system, with x approximately 0.52, where the two phases are separated by a ...
J, Frantti, Y, Fujioka, J, Zhang, S C, Vogel, Y, Wang, Y, Zhao, R M, Nieminen   +6 more
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High temperature morphotropic phase boundary piezoelectrics

IEEE Symposium on Ultrasonics, 2003, 2004
The BiScO/sub 3/-Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-PbTiO/sub 3/ [BS-PMN-PT] solid solution system has been investigated. The morphotropic phase boundary [MPB] in this ternary system was found to trace-out a nearly straight line between the two binary MPB compositions, BS-0.64PT and PMN-0.33PT.
E.F. Alberta, P.W. Rehrig, W.S. Hackenberger, C.A. Randall, T.R. Shrout   +4 more
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A Multiferroic Morphotropic Phase Boundary

Advanced Materials
ABSTRACT Bismuth ferrite (BiFeO 3 ) thin films possess large ferroelectric polarization and antiferromagnetic order, yet their magnetoelectric coupling is limited by weak intrinsic magnetization.
Tae Yeon Kim, Shashank Ojha, Bridget R. Denzer, Michael Xu, Ching‐Che Lin, Jesse Schimpf, Jaegyu Kim, Liyan Wu, Ramamoorthy Ramesh, Ilya Grinberg, Jonathan E. Spanier, James M. LeBeau, Lane W. Martin   +12 more
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Conditions of Morphotropic Phase Boundary in Perovskite-Oxides

Ferroelectrics, 2012
In order to search for Pb-free relaxor substances, the conditions to derive morphotropic phase boundary (MPB) are studied in perovskite-oxides. Before a microscopic theory for displacive type phase transition, the phenomenological approach is extended by combining with a first-principles computer simulation in several perovskite compounds.
Eiko Matsushita, Kouichi Sugiyama
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Coexistence States near the Morphotropic Phase Boundary

Japanese Journal of Applied Physics, 2012
A model of coexistence states near the morphotropic phase boundary (MPB) in perovskite-type ferroelectric crystals was studied using a simplified simulation based on the Landau–Ginzburg-type free energy functional. It was found that, even when no imperfection causing the random field exists, a stable phase and a metastable phase coexist near MPB ...
Makoto Iwata, Yoshihiro Ishibashi
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Morphotropic Phase Boundary in Irradiated Ferroelectric Polymers

Advanced Materials
Abstract Morphotropic phase boundary (MPB) enables a large piezoelectric effect in ferroelectric polymers. However, till now MPB has only been observed in a few polymers, which is induced by compositional tuning of the polymer composition.
Yuquan Liu, Hui Tong, Chenyi Li, Wei Qi, Huamin Zhou, Yang Liu   +5 more
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Reconsideration of the morphotropic phase boundary - the order of the ferroelectric phase transition -

Journal of the Korean Physical Society, 2015
The morphtropic phase boundary existing in a perovskite-type solid solution like Pb(Zr,Ti)O3 (PZT) is reconsidered in relation to the order of the ferroelectric phase transition. For the secondorder transition from the paraelectric cubic phase, at the triple point S where the cubic, tetragonal and rhombohedral phases meet, the free energy is isotropic ...
Yoshihiro Ishibashi, Makoto Iwata
openaire   +1 more source