Abstract
Polycrystalline samples of NaTeO4 were prepared by conventional solid-state reaction technique at low temperature (600° C). X-ray powder diffraction (XRD) technique was used to check the formation of single phase NaTeO4 compound with cell parametersa = 10·602(1) åb = 70·622(1) å andc = 8·506(1) å in orthorhombic crystal system. Detailed studies of dielectric constant (ε) (and loss tangent (tan δ) as a function of frequency (400 Hz-10 kHz) and temperature (−120°C–260°C) show that the compound has two phase transitions in the ferroelectric phase.
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Singh, N.K., Choudhary, R.N.P. Phase transitions in Na2TeO4 ceramics. Bull Mater Sci 23, 239–241 (2000). https://doi.org/10.1007/BF02720076
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DOI: https://doi.org/10.1007/BF02720076