Phase transition close to room temperature in BiFeO3 thin films

Abstract

BiFeO3 (BFO) multiferroic oxide has a complex phase diagram that can be mapped by appropriately substrate-induced strain in epitaxial films. By using Raman spectroscopy, we conclusively show that films of the so-called supertetragonal T-BFO phase, stabilized under compressive strain, displays a reversible temperature-induced phase transition at about 100\circ, thus close to room temperature.

accepted in J. Phys.: Condens. Matter (Fast Track Communication)

References in corpus (5)

• 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
• Structural distortion and magnetism of BiFeO3 epitaxial thin films: a Raman spectroscopy and neutron diffraction study
• Electric field effect on BiFeO${}_3$ single crystal investigated by Raman spectroscopy
• High-pressure phase transitions in BiFeO3: hydrostatic vs. non-hydrostatic conditions

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• A multiferroic on the brink: uncovering the nuances of strain-induced transitions in BiFeO${}_3$
• The Commensurate-Incommensurate Charge-Density-Wave Transition and Phonon Zone Folding in 1T-TaSe2 Thin Films
• Multiple high-pressure phase transitions in BiFeO3
• Temperature and thickness evolution and epitaxial breakdown in highly-strained BiFeO3 thin films
• Multiple strain-induced phase transitions in LaNiO3 thin films
• Structural study in Highly Compressed BiFeO3 Epitaxial Thin Films on YAlO3
• Anomalous low-energy phonons in nearly tetragonal BiFeO3 thin films
• Bismuth-based perovskites as multiferroics
• Domain tuning in mixed-phase BiFeO3 thin films using vicinal substrates
• High-Temperature Phonon Spectra of Multiferroic BiFeO3 from Inelastic Neutron Spectroscopy
• Optical spectroscopy on the photo-response in multiferroic BiFeO${}_3$ at high pressure