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(Color online) Temperature dependence of and for at selected frequencies.
(Color online) Frequency dependence of (a) and (b) at different temperatures for . The solid curves represent the fitting of Eq. (1). The inset in (a) shows the experimental and fitting results at , and the inset in (b) shows the Arrhenius relation of the relaxation time.
(Color online) Complex plane plots of the dielectric constant at 341 and . The solid curve represents the simulation data of Eq. (1).
(Color online) Complex plane plots of the electric modulus at different temperatures. The arrows indicate the corresponding values of .
(Color online) Simulation results at of the dielectric constant obtained from the equivalent circuit shown in the inset of (b). Symbols and solid curves are the experimental and calculated results, respectively.
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