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Temperature dependence of dielectric constant and loss for PSMT05 film at 5 kHz. The inset is ac conductivity as a function of reciprocal temperature at various frequencies.
The hysteresis loops of PSMT05 film measured at 1 kHz and various amplitude voltages under (a) 100 K, (b) 300 K, (c) 420 K, and (d) 560 K. (e) is the temperature dependence of and at the maximal voltage of 24 V.
Scaling plots of the hysteresis loop area dependence on electric field amplitude at several typical temperature regions using power law with (a) , (b) , and (c) in PSMT05 film.
The temperature dependence of the scaling exponent for PSMT05 and (the inset) 0.7PMN-0.3PT films.
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