Anomalous light diffusion in ferroelectrics having a diffuse phase transition

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作者
A. L. Korzhenevskiĭ
L. S. Kamzina
机构
[1] Russian Academy of Sciences,A. F. Ioffe Physicotechnical Institute
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关键词
Spectroscopy; Phase Transition; Distribution Function; State Physics; Surface Fractal;
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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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