This article is cited in 2 papers

Proceedings of the XIX All-Russian Conference on Physics of Ferroelectrics (VKS-XIX) (Moscow, Russia, June 19-23, 2011

Dielectric properties of the Li$_{0.07}$Na$_{0.93}$Ta$_{0.1}$Nb$_{0.9}$O$_3$ and Li$_{0.07}$Na$_{0.93}$Ta$_{0.111}$Nb$_{0.889}$O$_3$ solid solutions

K. Bormanis^a, M. N. Palatnikov^b, N. V. Sidorov^b, V. V. Efremov^b, I. N. Efremov^b, V. A. Sandler<sup>c

a</sup> Institute of Solid State Physics, University of Latvia, Riga, LV-1063, Latvia
^b Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials Kola Science Centre of the Russian Academy of Sciences, Apatity, Murmansk oblast, 184209, Russia
^c Ivanovo State University

Abstract: Dielectric properties of perovskite ferroelectric solid solutions Li$_{0.07}$Na$_{0.93}$Ta$_{0.1}$Nb$_{0.9}$O$_3$ and Li$_{0.07}$Na$_{0.93}$Ta$_{0.111}$Nb$_{0.889}$O$_3$ are studied over the 290–700 K range of temperature within the frequency range of 25–10$^6$ Hz. A decrease of the Curie temperature ($\sim$75 K) compared with Li$_{0.07}$Na$_{0.93}$Ta$_{0.111}$Nb$_{0.889}$O$_3$ synthesized from mechanical mixture of pentoxides Ta$_2$O$_5$ and Nb$_2$O$_5$ is observed in Li$_{0.07}$Na$_{0.93}$Ta$_{0.1}$Nb$_{0.9}$O$_3$ synthesized from co-precipitated pentoxide Ta$_{2y}$Nb$_{2(1-y)}$O$_5$.

 English version: Physics of the Solid State, 2012, 54:5, 960–961

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