用pfm光谱法研究弛豫SBN晶体中的反向开关效应

IF 1.3 4区 物理与天体物理 Q4 PHYSICS, CONDENSED MATTER
L. V. Simagina, T. R. Volk, Ya. V. Bodnarchuk, R. Gainutdinov, L. Ivleva
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引用次数: 2

摘要

摘要本文研究了方形脉冲列下SBN晶体中局部压电滞回线Hω-UDC (PFM光谱法)的测量。在tp < 1000 ms时,发现环路高度(即残余极化Pr)与脉冲持续时间tp和间隔Δt的关系。当tp/Δt < 1时,这些影响是明显的,这允许我们将它们归因于反向切换。首次揭示了矫顽场对Δt的依赖,以及由Pr不稳定性引起的反向开关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Backswitching effect in relaxor SBN crystals, studied by PFM-spectroscopy
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.
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来源期刊
Ferroelectrics Letters Section
Ferroelectrics Letters Section 物理-物理:凝聚态物理
CiteScore
1.10
自引率
0.00%
发文量
1
审稿时长
4.8 months
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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