Ground state structure and interactions between dimeric 2D Wigner crystals

Abstract

We study the ground state ordering and interactions between two two-dimensional Wigner crystals on neutralizing charged plates by means of computer simulation. We consider crystals formed by (i) point-like charges and (ii) charged dimers, which mimic the screening of charged surfaces by elongated multivalent ions such as aspherical globular proteins, charged dendrimers or short stiff polyelectrolytes. Both systems, with point-like and dimeric ions, display five distinct crystalline phases on increasing the interlayer distance. In addition to alteration of translational ordering within the bilayer, the phase transitions in the dimeric system are characterized by alteration of orientational ordering of the ions.

Revised version

References in corpus (15)

• Electrostatic correlations: from Plasma to Biology
• Statics and Dynamics of Strongly Charged Soft Matter
• Wigner crystal model of counterion induced bundle formation of rod-like polyelectrolytes
• Electrostatic Interactions in Strongly-Coupled Soft Matter
• Stability, dynamical properties and melting of a classical bi-layer Wigner Crystal
• Sliding Columnar Phase of DNA-Lipid Complexes
• MMM2D: A fast and accurate summation method for electrostatic interactions in 2D slab geometries
• Novel Electrostatic Attraction from Plasmon Fluctuations
• Effective Interaction of Charged Platelets in Aqueous Solution: Investigations of Colloid Laponite Suspensions by Static Light Scattering and Small-Angle X-Ray Scattering
• Bjerrum pairing correlations at charged interfaces
• Melting of the classical bilayer Wigner crystal: influence of the lattice symmetry
• Electrostatic Attraction of Coupled Wigner Crystals: Finite Temperature Effects
• Enhanced stability of the square lattice of a classical bilayer Wigner crystal
• Taming chaos by impurities in two-dimensional oscillator arrays
• Orientational Ordering and Dynamics of Rodlike Polyelectrolytes

Cited by in corpus (8)

• Wigner-Crystal Formulation of Strong-Coupling Theory for Counter-ions Near Planar Charged Interfaces
• Critical phenomena and phase sequence in classical bilayer Wigner crystal at zero temperature
• Ground state of classical bilayer Wigner crystals
• The rich polymorphic behavior of Wigner bilayers
• Like-charge attraction at the nanoscale: ground-state correlations and water destructuring
• Ground state structure of a bilayer Wigner crystal with repulsive dielectric images
• Strong-coupling theory of counterions with hard cores between symmetrically charged walls
• Tricriticality for dimeric Coulomb molecular crystals in ground state