Figure 1. (IMAGE)

Science China Press

Figure 1.

Caption

Schematic structures of 2D bimetal phosphates (MIMIIP2X6, MI and MII atoms are different metal elements, X=O, S, Se, Te). (a) Top view. (b) Side view of paraelectric phase. (c) Side view of ferroelectric phases with opposite polarization (P). (d)(e) Energy versus polarization of two ferroelectric metals (AuHfP2O6 and AuZrP2O6), showing the possible ferroelectric-paraelectric transition.

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