2003/02/28 by Rene Messina, Hartmut Loewen
Physics and Astronomy · #cond-mat.soft
paper · pdf · doi:10.1103/physrevlett.91.146101
published as Phys. Rev. Lett., Vol 91, 146101 (2003) · 4 pages, 3 eps figs - revtex4. PRL - in press
arxiv created 2003/08/08 · arxiv updated 2009/11/30
The phase diagram of crystalline bilayers of particles interacting via a Yukawa potential is calculated for arbitrary screening lengths and particle densities. Staggered rectangular, square, rhombic and triangular structures are found to be stable including a first-order transition between two different rhombic structures. For varied screening length at fixed density, one of these rhombic phases exhibits both a single and even a double reentrant transition. Our predictions can be verified experimentally in strongly confined charged colloidal suspensions or dusty plasma bilayers.