A method is described for improving the possibility and sensitivity of measurements of electromechanical properties of ferroelectric thin layers. This method is especially useful for investigating electrostrictive properties. A nonlinear model for the description of the electrical conductivity is presented. First results on the temperature, electric field and strain dependence of the high signal electrostrictive coefficient Q11 are given.
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Sorge et al. (1995) studied this question.
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