skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Understanding Strain‐Induced Phase Transformations in BiFeO 3 Thin Films

Journal Article · · Advanced Science
 [1];  [1];  [2];  [1];  [3];  [3];  [3];  [4];  [4];  [1]
  1. Materials Science and Technology Division Oak Ridge National Lab Oak Ridge TN 37831 USA
  2. Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA
  3. Department of Physics University of Michigan Ann Arbor MI 48109 USA
  4. Center for Nanophase Materials Sciences Oak Ridge National Lab Oak Ridge TN 37830 USA

Experiments demonstrate that under large epitaxial strain a coexisting striped phase emerges in BiFeO 3 thin films, which comprises a tetragonal‐like ( T ′) and an intermediate S ′ polymorph. It exhibits a relatively large piezoelectric response when switching between the coexisting phase and a uniform T ′ phase. This strain‐induced phase transformation is investigated through a synergistic combination of first‐principles theory and experiments. The results show that the S ′ phase is energetically very close to the T ′ phase, but is structurally similar to the bulk rhombohedral ( R ) phase. By fully characterizing the intermediate S ′ polymorph, it is demonstrated that the flat energy landscape resulting in the absence of an energy barrier between the T ′ and S ′ phases fosters the above‐mentioned reversible phase transformation. This ability to readily transform between the S ′ and T ′ polymorphs, which have very different octahedral rotation patterns and c / a ratios, is crucial to the enhanced piezoelectricity in strained BiFeO 3 films. Additionally, a blueshift in the band gap when moving from R to S ′ to T ′ is observed. These results emphasize the importance of strain engineering for tuning electromechanical responses or, creating unique energy harvesting photonic structures, in oxide thin film architectures.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231; FG02-06ER46273; AC02-06CH11357; AC05-00OR22725
OSTI ID:
1342586
Alternate ID(s):
OSTI ID: 1212888; OSTI ID: 1214486; OSTI ID: 1401626
Journal Information:
Advanced Science, Journal Name: Advanced Science Vol. 2 Journal Issue: 8; ISSN 2198-3844
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (33)

Coexistence of ferroelectric triclinic phases in highly strained BiFeO 3 films journal September 2011
The atomic structure of BiFeO3 journal May 1969
Evidence for Room-Temperature Multiferroicity in a Compound with a Giant Axial Ratio journal May 2009
A Strain-Driven Morphotropic Phase Boundary in BiFeO3 journal November 2009
Hybrid functionals based on a screened Coulomb potential journal May 2003
Unit cell orientation of tetragonal-like BiFeO 3 thin films grown on highly miscut LaAlO 3 substrates journal June 2013
Atomic structure and microstructures of supertetragonal multiferroic BiFeO 3 thin films journal March 2014
Simple ways of determining perovskite structures journal November 1975
Valence electron energy-loss spectroscopy in monochromated scanning transmission electron microscopy journal October 2005
Angle calculations for a (2+3)-type diffractometer: focus on area detectors journal December 2010
Atomic Structure of Highly Strained BiFeO 3 Thin Films journal January 2012
Energy levels of oxygen vacancies in BiFeO3 by screened exchange journal January 2009
Large field-induced strains in a lead-free piezoelectric material journal January 2011
A complete strain–temperature phase diagram for BiFeO 3 films on SrTiO 3 and LaAlO 3 (0 0 1) substrates journal December 2013
VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data journal October 2011
FINDSYM : program for identifying the space-group symmetry of a crystal journal January 2005
First-principles study of spontaneous polarization in multiferroic Bi Fe O 3 journal January 2005
Physics and Applications of Bismuth Ferrite journal June 2009
First-principles predictions of low-energy phases of multiferroic BiFeO 3 journal March 2011
Low-Symmetry Monoclinic Phases and Polarization Rotation Path Mediated by Epitaxial Strain in Multiferroic BiFeO3 Thin Films journal November 2010
Strain-induced isosymmetric phase transition in BiFeO 3 journal February 2010
Phase Transitions, Phase Coexistence, and Piezoelectric Switching Behavior in Highly Strained BiFeO 3 Films journal July 2013
Berry-phase theory of proper piezoelectric response journal February 2000
Theory of polarization of crystalline solids journal January 1993
Stress-induced R M A M C T symmetry changes in BiFeO 3 films journal April 2011
Optical properties of quasi-tetragonal BiFeO3 thin films journal March 2010
Probing the domain structure of BiFeO 3 epitaxial films with three-dimensional reciprocal space mapping journal May 2014
Hybrid exchange-correlation functional for accurate prediction of the electronic and structural properties of ferroelectric oxides journal April 2008
Structure of a ferroelectric and ferroelastic monodomain crystal of the perovskite BiFeO3 journal December 1990
Hybrid functional study of proper and improper multiferroics journal January 2010
A generalized solid-state nudged elastic band method journal February 2012
Polarization enhancement in two- and three-component ferroelectric superlattices journal September 2005
Dielectric hysteresis in single crystal BiFeO3 journal July 1970