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Dielectric constant and loss factor (inset) of PMN films as a function of temperature and frequency (, 3, 10, 30, and from the upper curve down for and from the lower curve up for .
Topographic (a) and piezoresponse (b) images of PMN thin film.
Typical local piezoelectric hysteresis loops measured in the epitaxial part of the film. The arrow indicates the appearance of polar state.
(a) Time dependence of the induced piezoresponse measured after appying voltage pulses (1) and (2) during . (b) Time dependence of the induced piezoresponse measured after the application of voltage pulses of different durations. The inset shows calculated parameters for KWW dependence in the slow relaxation regime.
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