Nonlinear magnetoelectric effect in PZT/Terfenol-D nanobilayer on a substrate with surface stress
Nonlinear magnetoelectric effect in PZT/Terfenol-D nanobilayer on a substrate with surface stress
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DOI：
10.1063/1.4887435
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发表时间：
2014-07
影响因子：
3.2
通讯作者：
Yang Shi;Longfei Niu;Yuanwen Gao
中科院分区：
文献类型：
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作者：
Yang Shi;Longfei Niu;Yuanwen Gao
基于线性压电本构关系和非线性磁致伸缩本构关系，建立了基片上锆钛酸铅（PZT）/Terfenol-D纳米双层膜的非线性磁电效应模型。在这项研究中，非线性ME系数在弯曲模式的两种情况下（无表面应力和表面应力）计算使用Gurtin-Murdoch理论。讨论了两种情况的差别以及残余表面张力的影响。同时，通过改变衬底厚度比和选择不同的衬底材料，研究了衬底对ME效应的钳制作用。分别研究了磁场频率、PZT体积分数对磁致伸缩效应的影响。最后，给出了ME效应与预应力的依赖关系。结果表明，对于纳米双层膜，残余表面张力和表面应力对微电子效应都有不可忽视的影响。另外，t...
Based on a linear piezoelectric constitutive relation and a nonlinear magnetostrictive constitutive relation, a nonlinear magnetoelectric (ME) effect model for lead zirconate titanate (PZT)/Terfenol-D nanobilayer on a substrate has been developed. In this study, the nonlinear ME coefficients at bending mode for two cases (without surface stress and with surface stress) are calculated by using Gurtin-Murdoch theory. The difference between two cases and the influence of residual surface tension are discussed. At the same time, the clamping effect of the substrate on ME effect is studied by altering the thickness ratio of the substrate and selecting different substrate materials. The influences of frequency of the magnetic field, PZT volume fraction on the ME effect are investigated, respectively. Finally, the dependence of ME effect on pre-stress is presented. The results show that for the nanobilayer, both the residual surface tension and surface stress have non-ignored effects on the ME effect. Besides, t...