Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Anisotropic epitaxial stabilization of a low-symmetry ferroelectric with enhanced electromechanical response

Journal Article · · Nature Materials
Here piezoelectrics interconvert mechanical energy and electric charge and are widely used in actuators and sensors. The best performing materials are ferroelectrics at a morphotropic phase boundary, where several phases coexist. Switching between these phases by electric field produces a large electromechanical response. In ferroelectric BiFeO3, strain can create a morphotropic-phase-boundary-like phase mixture and thus generate large electric-field-dependent strains. However, this enhanced response occurs at localized, randomly positioned regions of the film. Here, we use epitaxial strain and orientation engineering in tandem-anisotropic epitaxy-to craft a low-symmetry phase of BiFeO3 that acts as a structural bridge between the rhombohedral-like and tetragonal-like polymorphs. Interferometric displacement sensor measurements reveal that this phase has an enhanced piezoelectric coefficient of x2.4 compared with typical rhombohedral-like BiFeO3. Band-excitation frequency response measurements and first-principles calculations provide evidence that this phase undergoes a transition to the tetragonal-like polymorph under electric field, generating an enhanced piezoelectric response throughout the film and associated field-induced reversible strains. These results offer a route to engineer thin-film piezoelectrics with improved functionalities, with broader perspectives for other functional oxides.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Australian Research Council (ARC); Defense Advanced Research Projects Agency (DARPA); National Natural Science Foundation of China; Natural Science Foundation of Jiangsu Province; USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1844910
Journal Information:
Nature Materials, Journal Name: Nature Materials Journal Issue: 1 Vol. 21; ISSN 1476-1122
Publisher:
Springer Nature - Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (58)

Novel Nanoscale Twinned Phases in Perovskite Oxides journal August 2012
Nanoscale Structure and Mechanism for Enhanced Electromechanical Response of Highly Strained BiFeO3 Thin Films journal May 2011
Nanoscale Mechanical Softening of Morphotropic BiFeO 3 journal October 2014
Positive Effect of an Internal Depolarization Field in Ultrathin Epitaxial Ferroelectric Films journal November 2015
Manufacture of Piezoelectric Ceramics book January 1971
Quantitative measurement of displacement and strain fields from HREM micrographs journal August 1998
Advantages and challenges of relaxor-PbTiO3 ferroelectric crystals for electroacoustic transducers – A review journal March 2015
Probing Local Bias-Induced Transitions Using Photothermal Excitation Contact Resonance Atomic Force Microscopy and Voltage Spectroscopy journal January 2015
Polarization rotation mechanism for ultrahigh electromechanical response in single-crystal piezoelectrics journal January 2000
Lead-free piezoceramics journal October 2004
Materials science: Lead-free at last journal October 2004
Origin of morphotropic phase boundaries in ferroelectrics journal January 2008
Large elasto-optic effect and reversible electrochromism in multiferroic BiFeO3 journal February 2016
Atomic-scale evolution of modulated phases at the ferroelectric–antiferroelectric morphotropic phase boundary controlled by flexoelectric interaction journal January 2012
Large electric-field-induced strain in ferroelectric crystals by point-defect-mediated reversible domain switching journal January 2004
Ferroelastic switching for nanoscale non-volatile magnetoelectric devices journal February 2010
Crafting the magnonic and spintronic response of BiFeO3 films by epitaxial strain journal April 2013
Ferroelectric polarization reversal via successive ferroelastic transitions journal October 2014
Large field-induced strains in a lead-free piezoelectric material journal January 2011
An integrated optical modulator operating at cryogenic temperatures journal July 2020
A monoclinic ferroelectric phase in the Pb(Zr1−xTix)O3 solid solution journal April 1999
Rotator and extender ferroelectrics: Importance of the shear coefficient to the piezoelectric properties of domain-engineered crystals and ceramics journal March 2007
Origin of high piezoelectric response of Pb(ZrxTi1−x)O3 at the morphotropic phase boundary: Role of elastic instability journal January 2008
Ferroelectric solid solutions with morphotropic boundaries: Vanishing polarization anisotropy, adaptive, polar glass, and two-phase states journal June 2008
Triclinic phase in tilted (001) oriented BiFeO3 epitaxial thin films journal March 2009
Quantitative measurements of electromechanical response with a combined optical beam and interferometric atomic force microscope journal June 2015
A multiferroic on the brink: Uncovering the nuances of strain-induced transitions in BiFeO3 journal March 2016
Band excitation in scanning probe microscopy: sines of change journal November 2011
Strain dependence of polarization and piezoelectric response in epitaxial BiFeO 3 thin films journal March 2012
Theory of polarization of crystalline solids journal January 1993
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Stability of the monoclinic phase in the ferroelectric perovskite PbZr 1 − x Ti x O 3 journal December 2000
Nanodomain structure of Pb [ Zr 1 − x Ti x ] O 3 at its morphotropic phase boundary: Investigations from local to average structure journal May 2007
Elastic properties of cubic and rhombohedral BiFeO 3 from first-principles calculations journal August 2009
Coexistence of ferroelectric triclinic phases in highly strained BiFeO 3 films journal September 2011
Phonon-phonon interactions in transition metals journal September 2011
Temperature and thickness evolution and epitaxial breakdown in highly strained BiFeO 3 thin films journal January 2012
Linear electro-optic effect in multiferroic BiFeO 3 thin films journal May 2014
Tuning and optimizing properties of ferroelectric films grown on a single substrate: A first-principles-based study journal January 2015
Magnetic interactions in BiFeO 3 : A first-principles study journal March 2019
Restoring the Density-Gradient Expansion for Exchange in Solids and Surfaces journal April 2008
Strain-Induced Polarization Rotation in Epitaxial (001) BiFeO 3 Thin Films journal September 2008
Evidence for Room-Temperature Multiferroicity in a Compound with a Giant Axial Ratio journal May 2009
Electric-Field-Induced Paths in Multiferroic BiFeO 3 from Atomistic Simulations journal July 2009
Large Piezoelectric Effect in Pb-Free Ceramics journal December 2009
Ab Initio Indications for Giant Magnetoelectric Effects Driven by Structural Softness journal July 2010
Engineering Polarization Rotation in a Ferroelectric Superlattice journal October 2012
Electric-Field Switching of Magnetic Topological Charge in Type-I Multiferroics journal July 2020
Finite-Temperature Properties of Pb ( Zr 1 − x Ti x ) O 3 Alloys from First Principles journal June 2000
Polarization Rotation via a Monoclinic Phase in the Piezoelectric 92% PbZn 1 / 3 Nb 2 / 3 O 3 -8% PbTiO 3 journal April 2001
First-Principles Determination of Electromechanical Responses of Solids under Finite Electric Fields journal July 2003
Conformal Miniaturization of Domains with Low Domain-Wall Energy: Monoclinic Ferroelectric States near the Morphotropic Phase Boundaries journal November 2003
Finite-Temperature Properties of Multiferroic BiFeO 3 journal November 2007
Contributions to the Piezoelectric Effect in Ferroelectric Single Crystals and Ceramics journal October 2005
A Strain-Driven Morphotropic Phase Boundary in BiFeO3 journal November 2009
Giant piezoelectricity of Sm-doped Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 single crystals journal April 2019
Elastic anomalies in minerals due to structural phase transitions [Elastic anomalies in minerals due to structural phase transitions] journal July 1998
Strain Tuning of Ferroelectric Thin Films journal August 2007

Similar Records

Unraveling the origins of electromechanical response in mixed-phase Bismuth Ferrite
Journal Article · Mon Dec 31 23:00:00 EST 2012 · Physical Review B · OSTI ID:1088143

Origin of giant electric-field-induced strain in faulted alkali niobate films
Journal Article · Wed Jul 06 20:00:00 EDT 2022 · Nature Communications · OSTI ID:1877583

Strain-induced lead-free morphotropic phase boundary
Journal Article · Tue Aug 19 20:00:00 EDT 2025 · Nature Communications · OSTI ID:2587436