期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 22, 期 10, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/0953-8984/22/10/104118
关键词
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Using a highly efficient and reliable optimization tool that is based on ideas of genetic algorithms, we have systematically studied the pattern formation of the two-dimensional square-shoulder system. An overwhelming wealth of complex ordered equilibrium structures emerge from this investigation as we vary the shoulder width. With increasing pressure three structural archetypes could be identified: cluster lattices, where clusters of particles occupy the sites of distorted hexagonal lattices, lane formation, and compact particle arrangements with high coordination numbers. The internal complexity of these structures increases with increasing shoulder width.
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