Stable structures of Al510–800 clusters and lowest energy sequence of truncated octahedral Al clusters up to 10,000 atoms
The stable structures of Al510–800 clusters are obtained using dynamic lattice searching with constructed cores (DLSc) method by the NP-B potential. According to the structural growth rule, octahedra and truncated octahedra (TO) configurations are adopted as the inner cores in DLSc method. The results show that in the optimized structures two complete TO structures are found at Al586 and Al711. Furthermore, Al510–800 clusters adopt TO growth pattern on complete TOs at Al405, Al586, and Al711, and the configurations of the surface atoms are investigated. On the other hand, Al clusters with complete TO motifs are studied up to the size 10,000 by the geometrical construction method. The structural characteristics of complete TOs are denoted by the term “family”, and the growth sequence of Al clusters is investigated. The lowest energy sequence of complete TOs is proposed. âº The stable structures of Al510–800 clusters are obtained with the NP-B potential. âº Al510–800 clusters adopt truncated octahedral (TO) growth pattern based on complete TOs at Al405, Al586, and Al711. âº The lowest energy sequence of complete TOs up to the size 10,000 is proposed.