The structure of strongly coupled charged particle bilayers was investigated using molecular dynamics simulation, in a wide range of the plasma coupling parameter $\Gamma =20\mathrm{}–100.$ The simulations showed the existence of a series of structural transformations, controlled by the separation of the layers. At high values of $\Gamma$ a pronounced long-range order was found to develop at intermediate layer separations, with staggered square lattice configuration. The results show a fair agreement with those obtained by hypernetted chain calculations, in terms of intralayer and interlayer pair correlation functions and structure functions.

• Received 18 December 2000

DOI:https://doi.org/10.1103/PhysRevE.63.061504