MAGNETOELECTRICITY IN PIEZOELECTRIC-MAGNETOSTRICTIVE COMPOSITES
MAGNETOELECTRICITY IN PIEZOELECTRIC-MAGNETOSTRICTIVE COMPOSITES
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DOI：
10.1080/00150197608241997
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发表时间：
1976-01-01
期刊：
影响因子：
0.8
通讯作者：
VANSUCHTELEN, J
中科院分区：
文献类型：
--
作者：
VANDENBOOMGAARD, J;VANRUN, AMJG;VANSUCHTELEN, J
在由机械相干的压电相和压磁相组成的复合材料中，电场和磁场通过两步过程相互转换，该两步过程涉及作为中间步骤的机械变形。我们已经开发了这样一种材料的基础上的钴铁氧体-钛酸钡共晶是单向凝固，以获得对齐的两相结构。目前所获得的磁电效应的最大值在室温下为0.13 V/cm Oe。无量纲量4π（dP/dH）为0.2或比室温下已知的最佳单晶材料（Cr2 O3）高200倍。
In a composite material consisting of a piezoelectric and a piezomagnetic phase which are mechanically coherent, electric and magnetic fields are converted into each other by a two-step process involving mechanical deformation as the intermediate step. We have developed such a material on the basis of a Co ferrite-Ba titanate eutectic which is unidirectionally solidified so as to obtain an aligned two-phase structure. The maximum value of the magneto-electric effect obtained at present is 0.13 V/cm Oe at room temperature. The dimensionless quantity 4π(dP/dH) is 0.2 or a factor of 200 higher than the best single-crystal material known at room temperature (Cr2O3).