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    Liping Chen, Linjun Wang. Unbiased Fuzzy Global Optimization of Morse Clusters with Short-Range Potential for N < 400[J]. Chinese Journal of Chemical Physics , 2021, 34(6): 896-904. DOI: 10.1063/1674-0068/cjcp2110210
    Citation: Liping Chen, Linjun Wang. Unbiased Fuzzy Global Optimization of Morse Clusters with Short-Range Potential for N < 400[J]. Chinese Journal of Chemical Physics , 2021, 34(6): 896-904. DOI: 10.1063/1674-0068/cjcp2110210

    Unbiased Fuzzy Global Optimization of Morse Clusters with Short-Range Potential for N < 400

    • Global optimization of Morse clusters with short-range potential is a great challenge. Here, we apply our recently developed unbiased fuzzy global optimization method to systematically study Morse clusters with the potential range \rho = 14 and the number of atoms N up to 400. All the putative global minima reported in the literature have been successfully reproduced with relatively high success ratios. Compared to the available results for N \leq 240 and several larger Morse clusters, new global minima (and local minima) with lower energies have been found out for N = 164, 175, 188, 193, 194, 197, 239, 246, 260, 318, and 389. Clusters with magic numbers are figured out through fitting the size-dependent global minimum energies. The cluster structures tend to be close-packed for short-range potential with large N .
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