Atomic pair distribution function at the Brazilian Synchrotron Light Laboratory: application to the Pb_1–xLa_xZr_0.40Ti_0.60O₃ferroelectric system

This work reports the setting up of the X-ray diffraction and spectroscopy beamline at the Brazilian Synchrotron Light Laboratory for performing total scattering experiments to be analyzed by atomic pair distribution function (PDF) studies. The results of a PDF refinement for Al2O3standard are presented and compared with data acquired at a beamline of the Advanced Photon Source, where it is common to perform this type of experiment. A preliminary characterization of the Pb1–xLaxZr0.40Ti0.60O3ferroelectric system, withx= 0.11, 0.12 and 0.15, is also shown.