The electric properties and specially influence of defects on electrical conductivity are presented for modified PZT ceramics. The spectr of energie for oxides perovskite type A[2+]B[4+]O[3] is shown. The influence of ...

This work concerns ferroelectric phenomena in monocrystals BaTiO[3]. Influence of light illumination on electric conductivity and on phase transition temperature was studied in particular. It was found that illumination ...

On the base of the spectral dependence of the photoconductivity the width of forbidden band E[g] was determined in ferroelectric solid solutions: x PbTiO[3] – (1-x)SrTiO[3] I, x PbTiO[3] – (1-x)PbZrO[3] II, AgNbO[3] – ...

The temperature dependences of dielectrical permitivity and the electric conductivity for Pb(Zr[1-x]Ti[x])O[3] single crystals have been investigated. The additional evidence, for the existence of the tricritical points ...

Electric and fotoelectric properties of monocrystals $PbMg_{1/3}Nb_{2/3}O_3$ in low temperatures are discussed. It is found that in the region of low temperatures electric properties of $PbMg_{1/3}Nb_{2/3}O_3$ are to large ...

Electric properties of the compound $Na_{1-x}NbO_{3-0.5x}$ for 0<x<0.1 were studied. Influence of $Na_2O$ deficit on the sinter temperature on phase transition on dielectric and semiconducting properties of the ceramic ...

Influence of the modifiers Ba, Ca, La and Ti on electric properties of $NaNbO_3$ was studied. Data concerning their influence on electric conductivity, dielectric permeability and Curie point are presented. Dependance ...

Influence of illumination on phase transition temperature, on dielectric permittivity and on pyro currents in $Ba_xSr_{1-x}Nb_2O_6$ was studied. Dependence of photoelectretic charge density on temperature in the region of ...

The criterion of division solid solutions, based on sodium niobate in to ferro-, and antiferroelectric materials is described. The results of measurements are compiled in the table.