Dielectric Properties of KNO3–NH4NO3 Crystalline Binary Mixtures

详细

The temperature dependences of linear and nonlinear dielectric properties of potassium nitrate (KNO₃) and crystalline binary mixtures (KNO₃)_1–x(NH₄NO₃)_x (x = 0.025, 0.035, 0.05, 0.1) in the temperature interval 300–460 K have been investigated. An influence of the NH4NO3 impurity on the existence interval of the ferroelectric phase with increase of the impurity content has been detected. For x = 0.05 the ferroelectric phase is maintained down to room temperature.