The (9-4) structure

The (9-4) structure appears on the phase diagram at the three radius ratios of $\alpha=0.481$, $0.482$, and $0.483$. The structural data of the (9-4) structure at several radius ratios: $0.471$, $0.474$, $0.477$, $0.480$, $0.481$, $0.482$, $0.483$, $0.485$, and $0.488$, are downloadable here. The root directory contains several directories, which correspond to the several radius ratios. The structural data files are named by their packing fractions.