三层不对称压强结构中的准静电相互作用理论

Дмитрий Александрович Филиппов, Т. А. Галкина, И.Н. Маничева
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摘要

本文从理论上研究了具有正磁致伸缩和负磁致伸缩的压电层和磁层组成的三层结构中的准静态磁电相互作用。利用压电相和磁致伸缩相的弹性和静电方程组,得到了结构在磁场作用下的电响应表达式。在计算ME相互作用的值时考虑了纵向和弯曲变形的贡献。结果表明,与两层结构相比,使用不对称的三层不对称结构导致ME相互作用的幅度增加了几乎一个数量级。给出了镍/锆钛酸铅/ metglass结构的影响幅度与第三层厚度的关系。
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Теория квазистатического магнитоэлектрического взаимодействия в трехслойных асимметричных пьезомагнитострикционных структурах
The work is devoted to the theoretical investigation of the quasi-static magnetoelectric interaction in three-layer structures consisting of a piezoelectric and two magnetic layers with positive and negative magnetostriction. Using the system of elasto- and electrostatics equations for the piezoelectric and magnetostrictive phases, expressions for the electrical response of the structure in a magnetic field are obtained. The contributions from longitudinal and bending deformations are taken into account in value of ME interactions. It is shown that the use of an asymmetric three-layer asymmetric structure leads to an increase in the magnitude of the ME interaction by almost an order of magnitude compared to a two-layer structure. The dependences of the effect magnitude on the thickness of the third layer for the nickel/lead zirconate titanate/metglas structure are presented.
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