压力诱导的弛豫铁电体模型PbMg(1/3)Nb(2/3)O3中漫散射的抑制
Pressure-induced suppression of the diffuse scattering in the model relaxor ferroelectric PbMg(1/3)Nb(2/3)O3.
作者信息
Chaabane B, Kreisel J, Dkhil B, Bouvier P, Mezouar M
机构信息
Laboratoire des Matériaux et du Génie Physique, ENS de Physique de Grenoble, B.P. 46, 38402 St. Martin d'Hères, France.
出版信息
Phys Rev Lett. 2003 Jun 27;90(25 Pt 1):257601. doi: 10.1103/PhysRevLett.90.257601. Epub 2003 Jun 23.
We report an investigation of the relaxor ferroelectric PbMg(1/3)Nb(2/3)O3 by combining the external parameter high pressure with x-ray diffuse scattering. The observed total suppression of the relaxor-characteristic x-ray diffuse scattering is unusual and points to important pressure-induced changes in the local order. The observed behavior might well be a general feature in relaxor ferroelectrics under high pressure.
我们报告了一项通过将外部参数高压与X射线漫散射相结合来研究弛豫铁电体PbMg(1/3)Nb(2/3)O3的实验。观察到的弛豫特性X射线漫散射的完全抑制是不寻常的，这表明局部有序性发生了重要的压力诱导变化。观察到的行为很可能是高压下弛豫铁电体的一个普遍特征。
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