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Abstract
Point defects exert an important influence on the physical properties of crystals. The presence of defects may cause colouration of crystals and increase in their electric conductivity making technical application of these crystals difficult or even impossible. In this paper several possibilities of point defects formation in PbTiO3 crystals are given. The presence of these defects may be associated both with nonstoichiometry and with impurities. The aim of these studies was to determine the technological conditions for obtaining high quality PbTiO3 single crystals. Crystals were obtained by the “flux” method from PbO-TiO2-B2O3 solution.
