SURFACE SUPERMELTING WITH LONG-RANGE POTENTIAL

被引：4

作者：

CHEN, XJ

ERCOLESSI, F

LEVI, AC

TOSATTI, E

TRAYANOV, A

机构：

[1] International School for Advanced Studies, 1-34014 Trieste

来源：

VACUUM | 1990年 / 41卷 / 1-3期

关键词：

D O I：

10.1016/0042-207X(90)90373-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A slab of particles interacting through a potential with a long-range tail - ar-4 is studied by molecular dynamics. A very pronounced surface melting (supermelting), is observed well below bulk point. The expected cross-over from a 'slow', logarithmic-like growth of the quasi-liquid film at low temperatures to a 'fast', power-law growth closer to the triple point is found to occur. In the power-law growth regime the exponent approaches 1, as expected from the phenomenological theory. The absolute film thickness, however, is severely underestimated by mean-field theory. © 1990 Pergamon Press plc.

引用

页码：406 / 407

页数：2