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Multiferroics

Coupling of three lattice instabilities

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The interaction between ferroelectric distortion and two rotational modes in some transition-metal oxides promises a strategy for strong magnetoelectronic coupling, possibly at room temperature.

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Figure 1: Artificially and naturally layered perovskites.
Figure 2: Typical energy versus polarization curves.

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Correspondence to Philippe Ghosez.

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Ghosez, P., Triscone, JM. Coupling of three lattice instabilities. Nature Mater 10, 269–270 (2011). https://doi.org/10.1038/nmat3003

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