Abstract
Two-dimensional binary mixtures made up of particles carrying similar parallel dipole moments are investigated. Using Monte Carlo simulations a detailed structural analysis based on partial pair distribution functions and microstructure snapshots is presented for high dipolar coupling. At equimolar composition, the relevance of the coexistence of triangular superlattices with stoichiometry AB2 and A2B is revealed, with A(B) standing for the large(small) dipole moments. This key finding is in excellent qualitative agreement with the zero-temperature theoretical prediction of Assoud L. et al., EPL, 80 (2007) 48001. These structures are detectable in experiments on colloidal and granular matter.
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