Tuning the atomic and domain structure of epitaxial films of multiferroic BiFeO3

Abstract

Recent works have shown that the domain walls of room-temperature multiferroic BiFeO3 (BFO) thin films can display distinct and promising functionalities. It is thus important to understand the mechanisms underlying domain formation in these films. High-resolution x-ray diffraction and piezo-force microscopy, combined with first-principles simulations, have allowed us to characterize both the atomic and domain structure of BFO films grown under compressive strain on (001)-SrTiO3, as a function of thickness. We derive a twining model that describes the experimental observations and explains why the 71o domain walls are the ones commonly observed in these films. This understanding provides us with a new degree of freedom to control the structure and, thus, the properties of BiFeO3 thin films.

RevTeX; 4 two-column pages; 4 color figures. Figure 2b does not seem to display well. A proper version can be found in the source file

References in corpus (5)

• Fractal dimension and size scaling of domains in thin films of multiferroic BiFeO3
• Strain-induced isosymmetric phase transition in BiFeO3
• Structural distortion and magnetism of BiFeO3 epitaxial thin films: a Raman spectroscopy and neutron diffraction study
• Effect of epitaxial strain on ferroelectric polarization in multiferroic BiFeO3 films
• Epitaxial TbMnO3 thin films on SrTiO3 substrates: A structural study

Cited by in corpus (14)

• Structure and properties of functional oxide thin films: Insights from electronic-structure calculations
• Conduction through 71o domain walls in BiFeO3 thin films
• Stress-induced R-MA-MC-T symmetry changes in BiFeO3 films
• Low-Symmetry Monoclinic Phases and Polarization Rotation Path Mediated By Epitaxial Strain in Multiferroic BiFeO3 Thin Films
• First-principles predictions of low-energy phases of multiferroic BiFeO3
• Competing misfit relaxation mechanisms in epitaxial correlated oxides
• Domain walls in a perovskite oxide with two primary structural order parameters: first-principles study of BiFeO${}_3$
• Local conductivity and the role of vacancies around twin walls of (001)-BiFeO3 thin films
• Temperature Driven Structural Phase Transition in Tetragonal-Like BiFeO3
• Structural study in Highly Compressed BiFeO3 Epitaxial Thin Films on YAlO3
• Domain Wall Roughness in Stripe Phase BiFeO${}_3$ Thin Films
• Stability of 71° stripe domains in epitaxial BiFeO3 films upon repeated electrical switching
• Patterning enhanced tetragonality in BiFeO3 thin films with effective negative pressure by helium implantation
• Collective octahedral tilting in ultrathin Ruddlesden-Popper perovskite under terahertz light