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Fotoferroelektryczne zjawiska w monokryształach $(Ba, Sr) Nb_2O_6$
(1990)
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 ...
Klasyfikacja stałych roztworów na bazie $NaNbO_3$
(1990)
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.