“…In the majority of cases, measurements by common techniques provide accuracy of about 10%, which is considered satisfactory (Blagov et al, 2013;Marchenkov et al, 2018;Palatnikov et al, 2020). Among a variety of methods for studying piezoelectric properties, X-ray diffraction (XRD) occupies a special place, and allows highly spatially localized and accurate measurements (Blagov et al, 2013;Irzhak & Roshchupkin, 2013;Ibragimov et al, 2022), especially when using sources of synchrotron radiation (SR) (Palatnikov et al, 2020;Gorfman et al, 2007).…”