CLUSTER APPROACH FOR QUASI-CRYSTALS

被引:63
作者
JEONG, HC
STEINHARDT, PJ
机构
[1] Department of Physics, University of Pennsylvania, Philadelphia
关键词
D O I
10.1103/PhysRevLett.73.1943
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We consider a ''cluster picture'' to explain the structure and formation of quasicrystals. Quasicrystal ordering is attributed to a small set of low-energy atomic clusters which determine the state of minimum free energy. The nature of the ground state as T --> 0, depending upon the clusters and cluster energies, ranges from energetically stable and unique (as in Penrose tilings), to entropically stable and degenerate (as in random tilings).
引用
收藏
页码:1943 / 1946
页数:4
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