Published 1989 in Physical review. A, General physics
The lattice structure of bounded Coulomb systems is explored using a simple zero-temperature slab model. For slabs above a certain size in6nite-volume behavior (i.e., a bcc lattice) occurs. Below this size surface e6'ects dominate and the lattice type depends on the size, usually taking on an fcclike symmetry. This state is similar to the lattice observed in recent computer simulations. These results have implications for experiments now underway.