Origin of the high piezoelectric response in PbZr1-xTixO3
Origin of the high piezoelectric response in PbZr1-xTixO3
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DOI：
10.1103/physrevlett.84.5423
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发表时间：
2000-06-05
影响因子：
8.6
通讯作者：
Shirane, G
中科院分区：
文献类型：
--
作者：
Guo, R;Cross, LE;Shirane, G
对靠近菱面体-四方相界（所谓的同形相界）的极化 PbZr1-xTixO3 (PZT) 陶瓷样品进行的高分辨率 X 射线粉末衍射测量表明，对于菱面体和四方组合物，晶胞的压电伸长不会沿极性方向发生，而是沿与单斜变形相关的方向发生。这项工作为 PZT 中极高压电性的起源提供了第一个直接证据。
High resolution x-ray powder diffraction measurements on poled PbZr1-xTixO3 (PZT) ceramic samples close to the rhombohedral-tetragonal phase boundary (the so-called morphotropic phase boundary) have shown that for both rhombohedral and tetragonal compositions the piezoelectric elongation of the unit cell does not occur along the polar directions but along those directions associated with the monoclinic distortion. This work provides the first direct evidence for the origin of the very high piezoelectricity in PZT.