匡威
磁电效应
磁致伸缩
等效电路
材料科学
共振(粒子物理)
压电
联轴节(管道)
逆定理
凝聚态物理
物理
数学
磁场
复合材料
电介质
铁电性
电压
量子力学
光电子学
纯数学
几何学
多铁性
自守形式
作者
Jianping Zhou,Yuanjun Ma,Guangbin Zhang,Xiao‐Ming Chen
摘要
Direct and converse magnetoelectric effects are two opposite processes, which were integrated in a model based on equivalent circuit. Following the piezoelectric and magnetostrictive constitutive equations, we obtained magnetic-mechanical-electric equations, and then built a symmetric equivalent circuit about the magnetoelectric coupling. We equivalently analyzed the direct and converse magnetoelectric effects with this equivalent circuit. The numerical calculations fit the reported results very well, including the magnetoelectric changes with the thickness ratio and frequency, the relative lower converse magnetoelectric resonance frequency, and the phase increase of π around the direct and converse magnetoelectric resonance frequencies. This model helps us understand the magnetoelectric properties deeply, especially for the converse magnetoelectric effect.
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