Two-component mixture of charged particles confined in a channel: melting

Abstract

The melting of a binary system of charged particles confined in a {\it quasi}-one-dimensional parabolic channel is studied through Monte Carlo simulations. At zero temperature the particles are ordered in parallel chains. The melting is anisotropic and different melting temperatures are obtained according to the spatial direction, and the different types of particles present in the system. Melting is very different for the single-, two- and four-chain configurations. A temperature induced structural phase transition is found between two different four chain ordered states which is absent in the mono-disperse system. In the mixed regime, where the two types of particles are only slightly different, melting is almost isotropic and a thermally induced homogeneous distribution of the distinct types of charges is observed.

To appear in Journal of Physics: condensed matter ; (13 pages, 12 figures)

References in corpus (4)

• Partial Clustering in Binary Two-Dimensional Colloidal Suspensions
• Lane reduction in driven 2d-colloidal systems through microchannels
• Binary crystals in two-dimensional two-component Yukawa mixtures
• Structural and dynamical properties of a quasi-one-dimensional classical binary system

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• Second Plasmon and Collective Modes in Binary Coulomb Systems
• Diffusive redistribution of small spheres in crystallization of highly asymmetric binary hard-sphere mixtures