New Aspects of the Phase Transition of Lead Phosphate Pb3(PO4)2 Evidenced by Synchrotron X-Ray Diffuse-Scattering Experiments
New Aspects of the Phase Transition of Lead Phosphate Pb3(PO4)2 Evidenced by Synchrotron X-Ray Diffuse-Scattering Experiments
复制标题
同步加速器 X 射线漫散射实验证明磷酸铅 Pb3(PO4)2 相变的新方面
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
M. Lambert
中科院分区：
文献类型：
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作者：
P. Launois;M. Fettweis;F. Dénoyer;M. Lambert
铁弹性磷酸铅的相变已经得到了广泛的研究。由于关于这种“教科书”化合物的许多问题仍未解决，因此使用同步辐射（高强度进动相机照片）对互易空间进行了仔细检查。观察到一种新型的漫射散射，表明存在一种以前实验中未检测到的局部有序：相变比原来想象的要复杂得多。目前的结果提出了关于跃迁序参数的新问题，并建议进行新的实验。
The phase transition of ferroelastic lead phosphate has already been extensively studied. Because many questions concerning this "textbook" compound remained unsolved, a careful examination of the reciprocal space has been performed using synchrotron radiation (high-intensity precession camera photographs). A new type of diffuse scattering is observed showing the existence of a kind of local ordering not detected in previous experiments: the phase transition appears much more complex than originally thought. The present results raise new questions about the transition order parameter(s) and suggest new experiments to be performed.