Structure of Ferroelectric Silver Niobate AgNbO3
Structure of Ferroelectric Silver Niobate AgNbO3
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DOI：
10.1021/cm103389q
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发表时间：
2011-03
影响因子：
8.6
通讯作者：
M. Yashima;S. Matsuyama;R. Sano;M. Itoh;K. Tsuda;D. Fu
中科院分区：
文献类型：
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作者：
M. Yashima;S. Matsuyama;R. Sano;M. Itoh;K. Tsuda;D. Fu
用会聚束电子、电子、中子和同步辐射衍射技术和第一性原理计算确定了铁电银酸盐AgNbO 3（Pmc 21）的晶体结构。Pmc 21 AgNbO 3中原子沿c轴的沿着位移导致自发极化、铁电性和顺电-铁电相变。
Crystal structure of ferroelectric silver niobate AgNbO3 was determined (Pmc21) by convergent beam electron, electron, neutron, and synchrotron diffraction techniques and first-principles calculations. The atomic displacements along the c axis in Pmc21 AgNbO3 are responsible for the spontaneous polarization, ferroelectricity, and the paraelectric−ferroelectric phase transition.