Effect of electric field on the percolation phase transition in lead scandotantalate single crystals

被引:0
作者
L. S. Kamzina
N. N. Krainik
机构
[1] Russian Academy of Sciences,Ioffe Physicotechnical Institute
来源
Physics of the Solid State | 2000年 / 42卷
关键词
Spectroscopy; Phase Transition; State Physics; Phase Diagram; Temperature Variation;
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学科分类号
摘要
The effect of a dc electric field on the phase transition process in lead scandotantalate single crystals differing in the degree of ion ordering has been studied by small-angle light scattering (SAS). The spontaneous phase transition occurring in these crystals is shown to be accompanied by a sharp SAS intensity peak indicating the percolation nature of this transition. A phase diagram in the field-temperature coordinates has been constructed for all the PST crystals studied in the work. The electric field and the temperature variation rate have been found to affect the SAS intensity.
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页码:142 / 145
页数:3
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