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Figure 9. Thickness-dependent ferroelectricity in Pb(Zr,Ti)O3 on a SrTiO3 substrate. ABF images from regions with thicknesses of 6.5, 4, and 1.5 unit cells. Displacements and polarizations consider both the cation and oxygen. While polarization is suppressed in thin film, it remains stable. Reproduced with permission[137]. Copyright 2017, The Authors, published by Springer Nature.
