Thermodynamically stable one-component metallic quasicrystals

被引:8
作者
Denton, AR [1 ]
Hafner, J [1 ]
机构
[1] VIENNA TECH UNIV,INST THEORET PHYS,A-1040 VIENNA,AUSTRIA
来源
EUROPHYSICS LETTERS | 1997年 / 38卷 / 03期
关键词
D O I
10.1209/epl/i1997-00224-x
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Classical density-functional theory is employed to study finite-temperature trends in the relative stabilities of one-component quasicrystals interacting via effective metallic pair potentials derived from pseudopotential theory. Comparing the free energies of several periodic crystals and rational approximant models of quasicrystals over a range of pseudopotential parameters, thermodynamically stable quasicrystals are predicted for parameters approaching the limits of mechanical stability of the crystalline structures. The results support and significantly extend conclusions of previous ground-state lattice-sum studies.
引用
收藏
页码:189 / 194
页数:6
相关论文
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