Abstract

The parameters of the crystal structure of lead titanate with different degrees of imperfection of the anionic and cationic sublattices are refined by the Rietveld method. The experiments are carried out on a DRON-4 diffractometer (CuKα radiation; 20° < 2θ < 70°; scan step, 0.01°; exposure time per point, 10 s). All the calculations are performed with the GSAS software package in the space group P4mm. The structure parameters are refined in the isotropic approximation to Rd = 5.0–6.0%.

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