Interface kinetics of freezing and melting of Si and Na

被引：12

作者：

Iwamatsu, M

Horii, K

机构：

[1] Department of Computer Engineering, Hiroshima City University, Hiroshima 731-31, Numata-cho, Asaminami-ku

来源：

PHYSICS LETTERS A | 1996年 / 214卷 / 1-2期

关键词：

freezing; crystal; melt; density functional;

D O I：

10.1016/0375-9601(96)00163-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We examine the interface kinetics of freezing and melting of semiconducting Si with a diamond structure and metallic Na with a bcc structure using the time-dependent Ginzburg-Landau or Cahn-Allen equation. The various parameters of this free energy are related to the structural data at the liquid phase of those materials from density functional theory. The asymmetry of the interface velocity between superheating and undercooling is partly accounted for by the asymmetry of the functional form of the free energy.

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页码：71 / 75

页数：5

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