FRACTAL NATURE OF LARGE-SCALE INHOMOGENEOUS STRUCTURE IN FERROELECTRICS WITH A DIFFUSE PHASE TRANSITION

被引：3

作者：

Kamzina, L. S. ^{[1
]}

Korzhenevski, A. L. ^{[1
]}

Korshunov, O. Yu. ^{[1
]}

机构：

[1] Inst Physicotech, St Petersburg, Russia

来源：

FERROELECTRICS | 1996年 / 184卷

关键词：

D O I：

10.1080/00150199608230267

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The peculiarities of the electric field-induced phase transition in lead magnoniobate crystals (PMN), and the nature of the spatially non-uniform structure arising at this transition in PMN and also at the first-order phase transition in lead scandotantalate (PST) crystals have been investigated by means of the small-angle light scattering (SALS) technique. The experimental results confirm for the first time a percolation-type phase transition in the PMN crystal upon heating in an electric field. The physical nature of the large-scale inhomogeneous structure appearing at the phase transition is discussed in terms of a fractal model.

引用

页码：243 / 246

页数：4

共 6 条

[1]

DOROGOVTSEV SN, 1990, FERROELECTRICS, V112, P18

[2] PERCOLATION PHASE TRANSITION IN LEAD-ZINCONIOBATE CRYSTALS UNDER DC ELECTRIC FIELD [J].