Interplay of octahedral tilts and polar order in BiFeO3 films.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 23505214.
- Also identified by DOI 10.1002/adma.201204584.
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Abstract
Heterointerface stabilization of a distinct nonpolar BiFeO3 phase occurs simultaneously with changes in octahedral tilts. The resulting phase arises via suppression of polarization by a structural order parameter and can thus be identified as anti-ferroelectric (Fe displacements - bottom panel). The phase is metastable and can be switched into a polar ferroelectric state (top panel) under an applied electric bias.
Medical subject headings
- Bismuth
- Calcium Compounds
- Ferric Compounds
- Membranes, Artificial
- Oxides
- Titanium