Charged Particles on Surfaces: Coexistence of Dilute Phases and Periodic Structures on Membranes

Details Charged Particles on Surfaces: Coexistence of Dilute Phases and Periodic Structures on Membranes Charged Particles on Surfaces: Coexistence of Dilute Phases and Periodic Structures on Membranes

2006-11-13

arxiv.org/abs/cond-mat/0611338v1

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.98.237802

We consider a mixture of one neutral and two oppositely charged types of molecules confined to a surface. Using analytical techniques and molecular dynamics simulations, we construct the phase diagram of the system and exhibit the coexistence between a patterned solid phase and a charge-dilute phase. The patterns in the solid phase arise from competition between short-range immiscibility and long-range electrostatic attractions between the charged species. The coexistence between phases leads to observations of stable patterned domains immersed in a neutral matrix background.

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