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Fitted dielectric functions of (a) PTO, (b) PZT57, and (c) PZO layer using POC model.
Raw (discrete symbols) and fitted spectra (sold line) of the second derivatives of the dielectric functions for (a) PTO, (b) PZT57, and (c) PZO using SCP model.
Critical point energies of PZT as function of Zr composition. The open symbols are our data and the closed symbols are quoted from Ref. 5. The dot-dashed lines are from local density calculations of Ref. 4. The solid lines are from polynomial fitting of experimental data.
Comparison between the measured and the calculated critical point energies of PZT. Note that the calculated critical point energies of PZT are quoted from Ref. 4.
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