Figure 4 | Scientific Reports

Figure 4

From: Dielectric relaxation and pinning phenomenon of (Sr,Pb)TiO3 ceramics for dielectric tunable device application

Figure 4

Temperature dependence of permittivity εr and dielectric loss tanδ at various frequencies of 0.5, 1, 5, 10, 50, 100, 500 and 1000 kHz for (Sr,Pb)TiO3 ceramics (a) SPT20, (b) SPT25, (c) SPT30, (d) SPT35, (e) SPT40, (f) SPT45, (g) SPT50 and (h) SPT55. The insets in (a–c) are the temperature dependence of permittivity between −200 ~150 °C. The insets in (a–h) give the plot between ln(2πf) and 1000/T according to the Arrhenius law.

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