Thermodynamic stability of periodic and quasiperiodic crystals within a van der Waals approximation

被引：4
|
作者：
Achrayah, R [1 ]
Baus, M [1 ]
机构：
[1] Free Univ Brussels, Fac Sci, B-1050 Brussels, Belgium
来源：
PHYSICAL REVIEW E | 1998年 / 57卷 / 04期
关键词：
D O I：
10.1103/PhysRevE.57.4361
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We investigate the relation between the thermodynamic stability of periodic and quasiperiodic crystals and the characteristics of the interaction potential within a simple van der Waals approximation to the free energy of a one-component two-dimensional system We find that thermodynamically stable quasiperiodic crystals can be found only when the interaction potential has at least two negative minima separated by a positive maximum.
引用
收藏
页码：4361 / 4367
页数：7
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