A morphotropic phase boundary system based on polarization rotation and polarization extension

Abstract

Many ferroelectric solid solutions exhibit enhanced electro-mechanical properties at the morphotropic boundary separating two phases with different orientations of polarization. The mechanism of properties enhancement is associated with easy paths for polarization rotation in anisotropically flattened free energy profile. Another mechanism of properties enhancement related to free energy flattening is polarization extension. It is best known at temperature-driven ferroelectric-paraelectric phase transitions and may lead to exceedingly large properties. Its disadvantage is temperature instability of the enhancement. In this paper a temperature-composition phase diagram is proposed that exhibits compositionally driven-phase transitions with easy paths for both polarization rotation and polarization extension.

accepted in Appl. Phys. Lett./ presented at APS 2010 March meeting

References in corpus (4)

• Origin of the anomalous piezoelectric response in wurtzite Sc${}_x$Al${}_{1-x}$N alloys
• Pressure-Induced Anomalous Phase Transitions and Colossal Enhancement of Piezoelectricity in PbTiO${}_3$
• Rotator and extender ferroelectrics: Importance of the shear coefficient to the piezoelectric properties of domain-engineered crystals and ceramics
• Piezoelectric Response and Free Energy Instability in the Perovskite Crystals BaTiO3, PbTiO3 and Pb(Zr,Ti)O3

Cited by in corpus (20)

• Elastic, dielectric and piezoelectric anomalies and Raman spectroscopy of 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3
• Coexistence of Ferroelectric Triclinic Phases and Origin of Large Piezoelectric Responses in Highly Strained BiFeO3 films
• Tuning photoluminescence response by electric field in the lead-free piezoelectric Na1/2Bi1/2TiO3-BaTiO3
• Ferroelectric and dielectric properties of Hf0.5Zr0.5O2 thin film near morphotropic phase boundary
• Ab-initio studies on the phonons of BaTiO3 polytypes: pressure dependences with a hybrid functional
• Length-scale dependent average structures, piezoelectricity enhancement and depolarization mechanisms in a non-MPB high-performance piezoelectric alloy system PbTiO3-Bi(Zr1/2Ni1/2)O3
• Fine tuning epitaxial strain in ferroelectrics: PbxSr(1-x)TiO3 on DyScO3
• Pressure induced phase transitions in Sm-doped BiFeO3 in the morphotropic phase boundary
• Evidence for a tricritical point coinciding with the triple point in (Pb0.94Sr0.06)(ZrxTi1-x)O3 : A combined synchrotron x-ray diffraction, dielectric and Landau theory study
• Soft Modes and Local Structural Transitions in Pb-free Ba(Ti0.8Zr0.2)O3-x(Ba0.7Ca0.3)TiO3 (x = 0.5): Pressure- and Temperature-dependent Raman Studies
• Effect of thermal annealing on dielectric and ferroelectric properties of aerosol-deposited $0.65\text{Pb}({\text{Mg}}_{1/3}{\text{Nb}}_{2/3}){\text{O}}_3-0.35{\text{PbTiO}}_3$ thick films
• Ground state of (Pb0.94Sr0.06)(Zr0.530Ti0.470)O3 in the morphotropic phase boundary region: Evidence for a monoclinic Cc space group
• Terahertz and Infrared Studies of Antiferroelectric Phase Transition in Multiferroic Bi_0.85Nd_0.15FeO_3
• Electric-field-induced non-ergodic relaxor to ferroelectric transition in BiFeO3-xSrTiO3 ceramics
• Magnetic properties of BiFeO${}_3$-BaTiO${}_3$ ceramics in the morphotropic phase boundary: a role of crystal structure and structural parameters
• First-principles Investigations on Polytypes of BaTiO3: Hybrid Calculations and Pressure Dependences
• Unambiguous evidence of three coexisting ferroelectric phases in a lead-free Li${}_x$Na${}_{1-x}$NbO${}_3$ system
• Flexocoupling impact on the kinetics of polarization reversal
• Ceramic processing and multiferroic properties of the perovskite YMnO${}_3$-BiFeO${}_3$ binary system
• Morphotropic Phase Boundary in Sm-Substituted BiFeO3 Ceramics: Local vs Microscopic Approaches