Sergey Prosandeev, Dawei Wang, Wei Ren, Jorge Íñiguez and Laurent Bellaiche Novel Nanoscale Twinned Phases in Perovskite Oxides Advanced Functional Materials 23
A new family of nanometer-scale twinned octahedral tilting structures is found in multiferroic BiFeO3 by developing and/or using first-principle-based schemes. Among other properties, this complex tilting is coupled with unusual antiferroelectricity. These new and previously overlooked nano-twinned patterns originate from frustration and are likely to be present in a variety of compounds.
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