Abstract
In the systems of solid solutions (1−x)NaNbO3−x A0.5Bi0.5TiO3, where A is Li (I), Na(II), K(III), and Ag(IV), the concentration dependence of the temperature T m, corresponding to a maximum in the dielectric permittivity ε, is described by a curve with minimum. In systems II and IV, a “ break” is observed on the T m(x) dependences in the region of x≈0.2, and the compositions with x<0.2 are characterized by anomalously large temperature hysteresis of ε(T) reaching 80–100 K. Some compositions of systems I and III have very diffuse peaks of ε(T) in the room temperature range, which is of interest from the standpoint of search for lead-free relaxer materials.
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 26, No. 3, 2000, pp. 6–11.
Original Russian Text Copyright © 2000 by Raevski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Reznichenko, Malitskaya.
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Raevskii, I.P., Reznichenko, L.A. & Malitskaya, M.A. Features in the dielectric properties and temperature-composition phase diagrams of NaNbO3-A0.5Bi0.5TiO3 (A = Li, Na, K, Ag) solid solutions. Tech. Phys. Lett. 26, 93–95 (2000). https://doi.org/10.1134/1.1262752
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DOI: https://doi.org/10.1134/1.1262752