期刊
PHYSICAL REVIEW LETTERS
卷 114, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.188302
关键词
-
资金
- Ministry of Science and Higher Education [IP2011/016971, IP2012/012472]
- European Research Council [279647]
We report three-dimensional structures-mesoscale atoms-comprising up to N = 8 aqueous droplets compressed in a liquid shell. In contrast to hard colloids that self-assemble into structures unique for a given N, we observe multiple metastable states. We attribute this unexpected richness of metastable structures to the deformability of the cores that introduces irreducible many-body interactions between the droplets. These exotic, often highly anisotropic, structures are locally stable. The structures displaying highly nonoptimum packing-and hence interfacial energy much higher than that of the lowest-energy state-exhibit finite energy barriers that prevent restructuring and relaxation of energy.
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