Anomalous light diffusion in ferroelectrics having a diffuse phase transition

被引:0
|
作者
A. L. Korzhenevskiĭ
L. S. Kamzina
机构
[1] Russian Academy of Sciences,A. F. Ioffe Physicotechnical Institute
来源
Physics of the Solid State | 1998年 / 40卷
关键词
Spectroscopy; Phase Transition; Distribution Function; State Physics; Surface Fractal;
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中图分类号
学科分类号
摘要
It has been shown by using the statistical approach that the angular dependence of intensity I(θ) in multiple small-angle light scattering can be described by Lévy’s universal distribution functions. The fundamental property of the stability of these distributions permits one to extract information on the characteristics of fractal media as complete as it is possible in the simple single-scattering case. In particular, an analysis of the polarization characteristics of I(θ) in disordered PST reveals that the surface fractals observed in these crystals are of the heterophase rather than domain origin.
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页码:1394 / 1397
页数:3
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