Abstract
Dielectric constant (ɛ), dielectric loss (tan δ) and conductivity (σ) for K2Zn2(SO4)3 and (NH4)2 Mg2(SO4)3 have been measured over the frequency range 100 Hz — 100 kHz and in temperature range 30°C — 400°C. The values of static dielectric constant at room temperature are 7.67 and 4.80 for K2Zn2(SO4)3 and (NH4)2 Mg2(SO4)3 respectively. The plots of log σ against reciprocal temperature at different frequencies of these samples merge into a straight line beyond 250°C and the activation energies calculated in this region are found to be 0.67 eV and 1.98 eV for K2Zn2(SO4)3 and (NH4)2 Mg2(SO4)3 respectively.
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Devi, P., Sirdeshmukh, L. Dielectric properties of K2Zn2(SO4)3 and (NH4)2 Mg2(SO4)3 . Bull. Mater. Sci. 4, 17–21 (1982). https://doi.org/10.1007/BF02744460
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DOI: https://doi.org/10.1007/BF02744460