Jahn-Teller deformations of jellium slices.

Equilibrium geometries of quasi two-dimensional jellium systems are calculated in the local density approximation, closely following the 'Ultimate Jellium Model' of [1]. The background charge is assumed to be fully deformable in a layer between two parallel planes, whereas the wave functions in the direction perpendicular to such a 'jellium slice' are confined to their ground state. Like for jellium clusters in three dimensions [1], we find that for various system sizes, a trend towards a breaking of axial and inversion symmetries is observable. [ABSTRACT FROM AUTHOR]