Fragmentation of Silicon Microclusters
A detailed study of SiN (N=2-14) clusters has been performed through molecular dynamics (MD) simulation and the method of steepest descent quench (SDQ) with the Stillinger-Weber three-body potential. The approach is intrinsically a finite-temperature method which investigates all underlying mechanically stable structures visited by the system in the equilibrium state. Results indicate that the magic numbers, relatively stable clusters SiN (N=4,6,10), are determined by the topology and energetics of high energy bound structures rather than the structure and ground state energies at zero temperature.
KeywordsMagic Number Fragmentation Energy Fragmentation Temperature Molecular Dynamic Step Identical Pentagon
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