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Analysis of pattern formation in systems with competing range interactions
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| Abstract |
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| We analyzed pattern formation and identified various morphologies in a system of particles interacting through a non-monotonic potential with a competing range interaction characterized by a repulsive core (r < r(c)) and an attractive tail (r > r(c)), using molecular-dynamics simulations. Depending on parameters, the interaction potential models the inter-particle interaction in various physical systems ranging from atoms, molecules and colloids to vortices in low kappa type-II superconductors and in recently discovered 'type-1.5' superconductors. We constructed a 'morphology diagram' in the plane 'critical radius r(c)-density n' and proposed a new approach to characterizing the different types of patterns. Namely, we elaborated a set of quantitative criteria in order to identify the different pattern types, using the radial distribution function (RDF), the local density function and the occupation factor. | | |
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English
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New journal of physics / Institute of Physics; German Physical Society. - Bristol | |
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Bristol : 2012
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1367-2630
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14(2012), 21 p.
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063032
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000306946600003
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E-only publicatie
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