Changes in phase transition temperatures in PbZrO3 with Pb and O vacancies under the influence of hydrostatic pressure

Abstract
It was confirmed that the introduction of defects into PbZrO3 as a result of PbO sublimation markedly affects electric permittivity and polarization as functions of temperature and hydrostatic pressure. Changes are also found in the constants appearing in the Curie-Weiss formula and in the temperatures of phase transitions between the para-, ferro-, and antiferro-electric states.