Dielectric Response in (K0.5Na0.5) (Nb 1-xSbx)O3+0.5 mol%MnO2 Ceramics to Weak Sinusoidal Fields of Low and Infra-Low Frequencies
Integrated Ferroelectrics 2011
Ilze Smeltere, K. Bormanis, A.V. Sopit, A.I. Burkhanov

The thermal anomalies exhibited as "shoulders" at infra-low frequencies and maximums at low frequencies related to structural transitions in the polar phase of (K0.5Na0.5) (Nb1-xSbx) O3+0.5 mol%MnO2 are found to shift from T ∼ 185°C to T ∼ 140°C at changing concentration x from 0 to 0.05. The range of temperature ΔT(x) corresponding to the difference between positions of the anomalies on the '(T) curve at frequencies 1000 Hz and 1 Hz changes from 0.5 degrees at x = 0 to 2.5 degrees at x = 0.05, which may point to relaxor properties of the given phase transition being present only at rather high concentrations of Sb.


Atslēgas vārdi
dielectric response; KNN solid solutions; low frequencies measurements
DOI
10.1080/10584587.2011.570659
Hipersaite
http://www.tandfonline.com/doi/abs/10.1080/10584587.2011.570659

Smeltere, I., Bormanis, K., Sopit, A., Burkhanov, A. Dielectric Response in (K0.5Na0.5) (Nb 1-xSbx)O3+0.5 mol%MnO2 Ceramics to Weak Sinusoidal Fields of Low and Infra-Low Frequencies. Integrated Ferroelectrics, 2011, Vol.123, Iss.1, 108.-112.lpp. ISSN 1058-4587. e-ISSN 1607-8489. Pieejams: doi:10.1080/10584587.2011.570659

Publikācijas valoda
English (en)
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