Abstract
The electromechanical behavior of 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 (0.65PMN-0.35PT) thick films, screen printed and fired on alumina substrates, was investigated using an atomic force microscope. A quadratic relation between the induced strain and the electric field was found and is discussed here. The electrostrictive coefficient M33 was determined to be 7.6×10−16 m2/V2. The determined tetragonal crystal structure, the frequency independence of the dielectric maxima as a function of temperature, and the hysteresis loop with a remanent polarization of 31 μC/cm2 and a coercive field of 40 kV/cm confirm the ferroelectric nature of the developed 0.65PMN-0.35PT thick films.
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