Abstract
Ferroelectric hysteresis loops are observed in the mixed crystals of Ca2Sr(C2H5CO2)6(1−x)·(CH3CO2)6x in the range of 0≤x≤0.17. The Curie temperature decreases remarkably with increasing CH3CO2 concentration according to the relation of Tc(x)=Tc(0)−600x(°C), where Tc(x) is the Curie temperature at x.