  The global minima of clusters bound by a Dzugutov potential form non-compact
polytetrahedral clusters mainly composed of interpenetrating and face-sharing
13-atom icosahedra. As the size increases, these icosahedral units first form
linear arrays, then two-dimensional rings, then three-dimensional networks.
Characterization of the energy landscapes of these clusters shows that they are
particularly rough and generally exhibit a multiple-funnel topography. These
results provide new insights into the structure and dynamics of bulk
supercooled Dzugutov liquids and the form of the bulk phase diagram.
