fig7
Figure 7. (A) Temperature dependence of dielectric constant and dielectric loss at 1 kHz for N2-BTC4 ceramic; (B) Complex impedance spectra of N2-BTC4 ceramic, with the inset showing the Arrhenius plot of ln(f) versus 1000/T; (C) Dielectric constant and DC-bias stability coefficient as a function of the bias-field for N2-BTC4 ceramic; (D) P-E hysteresis loops and the corresponding I-E curves measured at 60 kV/cm for N2-BTC4 ceramic.
