FLUCTUATION EFFECTS IN 1ST-ORDER PHASE-TRANSITIONS - THEORY AND MODEL FOR MARTENSITIC TRANSFORMATIONS

被引：21

作者：

LINDGARD, PA ^{[1
]}

MOURITSEN, OG ^{[1
]}

机构：

[1] TECH UNIV DENMARK,DEPT STRUCT PROPERTIES MAT,DK-2800 LYNGBY,DENMARK

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.41.688

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss central questions in weak, first-order structural transitions by means of a magnetic analog model. A theory including fluctuation effects is developed for the model, showing a dynamical response with softening, fading modes and a growing central peak. The model is also analyzed by a two-dimensional Monte Carlo simulation, showing clear precursor phenomena near the first-order transition and spontaneous nucleation. The kinetics of the domain growth is studied and found to be exceedingly slow. The results are applicable for martensitic transformations and structural surface-reconstructive transitions. © 1990 The American Physical Society.

引用

页码：688 / 703

页数：16

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