Stress-induced R-MA-MC-T symmetry changes in BiFeO3 films

Abstract

The recent discovery of a stress-induced structural phase transition in the single-component perovskite BiFeO3 has revived interest in this lead-free ferroelectric. The coexistence of different phases may lead to large piezoelectric coefficients, a property typically associated with complex solid solutions of lead-based perovskites. Here we report combined experimental and computational results showing that the stress-induced phase transitions in BiFeO3 follow the path of rhombohedral(R)-to-monoclinic(MA)-to-monoclinic(MC)-to-tetragonal(T), where both MC and T show highly enhanced c/a ratios. This R-MA-MC-T sequence is otherwise observed only near morphotropic phase boundaries (MPBs) in lead-based perovskites (i.e. near a compositionally induced phase instability), where it is controlled by electric field, temperature, or composition. Our results represent the first time that this evolution has been induced in a single component system using strain alone, and show that substrate- imposed symmetry lowering results in a similar phase instability as the proximity to a MPB in solid solutions.

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Cited by in corpus (28)

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• Ultrafast carrier dynamics and radiative recombination in multiferroic BiFeO${}_3$
• Temperature and thickness evolution and epitaxial breakdown in highly-strained BiFeO3 thin films
• Antiferromagnetic transitions in `T-like' BiFeO3
• Study of strain effect on in-plane polarization in epitaxial BiFeO3 thin films using planar electrodes
• Phase transition close to room temperature in BiFeO3 thin films
• Engineering polarization rotation in a ferroelectric superlattice
• Temperature Driven Structural Phase Transition in Tetragonal-Like BiFeO3
• Large tensile strain induced monoclinic MB phase in BiFeO3 epitaxial thin films on PrScO3 substrate
• Strain engineering of epitaxial oxide heterostructures beyond substrate limitations
• Strain engineering magnetic frustration in perovskite oxide thin films
• Domain and Phase De-strain - Formation of Ferroelastic Domain Structures
• Structural study in Highly Compressed BiFeO3 Epitaxial Thin Films on YAlO3
• Controllable Defect Driven Symmetry Change and Domain Structure Evolution in BiFeO3 with Enhanced Tetragonality
• Strain-gradient-induced magnetic anisotropy in straight-stripe mixed-phase bismuth ferrites: An insight into flexomagnetic phenomenon
• Periodic elastic nanodomains in ultrathin tetrogonal-like BiFeO3 films
• Electrical phase diagram of bulk BiFeO${}_3$
• Prediction of new low-energy phases of BiFeO${}_3$ with large unit cell and complex tilts beyond Glazer notation
• Domain tuning in mixed-phase BiFeO3 thin films using vicinal substrates
• Unit cell orientation of tetragonal-like BiFeO${}_3$ thin films grown on highly miscut LaAlO${}_3$ substrates
• Temperature-driven evolution of hierarchical nanodomain structure in tetragonal-like BiFeO3 films
• Combined electrostatic and strain engineering of BiFeO${}_3$ thin films at the morphotropic phase boundary
• Microscopic origin of pressure-induced isosymmetric transitions in fluoromanganate cryolites
• Structural behaviour of BiFeO3/SrRuO3 superlattices: an X-ray diffraction and Raman spectroscopy investigation
• Built-in electric field induces polarization rotation in bilayer BiFeO3/(Ba,Sr)TiO3 thin films