L. V. Simagina, T. R. Volk, Ya. V. Bodnarchuk, R. Gainutdinov, L. Ivleva
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引用次数: 2
Abstract
ABSTRACT We present studies of local piezoelectric hysteresis loops Hω-UDC (PFM spectroscopy method) measured in SBN crystals under square pulse trains. The dependences of the loop height, i. e., of the remnant polarization Pr, on the pulse duration tp and spacing Δt were found at tp < 1000 ms. The effects are pronounced at tp/Δt < 1, which permits us to attribute them to backswitching. For the first time, the dependence of coercive fields on Δt was revealed, which as well as the backswitching is caused by Pr instability.
期刊介绍：
Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals.
Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.
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