Enhancing magnetoelectric effect via the curvature of composite cylinder
Enhancing magnetoelectric effect via the curvature of composite cylinder
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DOI：
10.1063/1.3415528
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发表时间：
2010-05
影响因子：
3.2
通讯作者：
Huiming Wang;E. Pan;W. Q. Chen
中科院分区：
文献类型：
--
作者：
Huiming Wang;E. Pan;W. Q. Chen
解析求解了压电/压磁双层圆柱在简谐激励下的磁电效应。我们发现，在一个固定的厚度比的层，静态或低频ME效果可以大大提高通过增加圆柱的曲率。另一方面，在兆赫频域中，我们观察到，峰值ME效应可以通过减小曲率而显著增加。我们进一步表明，在一个固定的曲率，ME效应可以调谐到周围的巨输出的谐振频率通过改变边界条件和厚度比。
We solved analytically the magnetoelectric (ME) effect in a bilayered piezoelectric/piezomagnetic cylinder under harmonic excitation. We revealed that at a fixed thickness ratio of the layers, the static or low-frequency ME effect can be substantially enhanced by increasing the curvature of the cylinder. In the megahertz frequency domain, on the other hand, we observed that the peak ME effect can be considerably increased by decreasing the curvature. We further showed that at a fixed curvature, the ME effect can be tuned to be around the resonant frequency for giant output by varying the boundary condition and thickness ratio.