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Transition metal oxides

Ferroelectricity driven by orbital order

The discovery that the rotation of the orbital arrangement in manganites induces ferroelectricity exposes an intriguing phase transition that could serve as a blueprint for novel applications.

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Figure 1: Possible arrangements of Mn3+ d-orbitals on a square lattice.

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Keimer, B. Ferroelectricity driven by orbital order. Nature Mater 5, 933–934 (2006). https://doi.org/10.1038/nmat1783

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