Push-pull mode magnetostrictive/piezoelectric laminate composite with an enhanced magnetoelectric voltage coefficient
Push-pull mode magnetostrictive/piezoelectric laminate composite with an enhanced magnetoelectric voltage coefficient
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DOI：
10.1063/1.2007868
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发表时间：
2005-08-08
影响因子：
4
通讯作者：
Viehland, D
中科院分区：
文献类型：
--
作者：
Dong, S;Zhai, J;Viehland, D
由对称纵向极化的压电Pb（Mg_（1/3）Nb_（2/3））O_（3-PbTiO_3）晶体和两个纵向磁化的磁致伸缩层Tb_（1-x）Dy_xFe_2组成的磁电（ME）叠层复合材料已被开发，相对于以前的叠层结构，其具有显著上级ME电压系数。纵向极化的压电层的对称性质允许在推拉模式下操作，该推拉模式优化了层之间的弹性耦合。我们的小型层压板在低频下具有类似于1.6 V/Oe的巨大ME电压系数，在谐振驱动下该系数显著增强至类似于20 V/Oe，并且在f=f（0）下具有类似于10（-12）T的异常低水平磁场灵敏度。(c)2005年美国物理学会。
A magnetoelectric (ME) laminate composite consisting of a symmetric longitudinally poled piezoelectric Pb(Mg1/3Nb2/3)O-3-PbTiO3 crystal and two longitudinally magnetized magnetostrictive Tb1-xDyxFe2 layers has been developed that has a notably superior ME voltage coefficient, relative to previous laminate configurations. The symmetric nature of the longitudinally poled piezoelectric layer allows for operation in a push-pull mode that optimizes elastic coupling between layers. Our small laminate has a giant ME voltage coefficient of similar to 1.6 V/Oe at low frequencies, a significant enhancement of this coefficient to similar to 20 V/Oe under resonance drive, and an exceptional low-level magnetic field sensitivity of similar to 10(-12) T at f=f(0). (c) 2005 American Institute of Physics.