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Information × Registration Number 0224U032975, (0124U003427) , R & D reports Title Structural and thermodynamic properties in mixtures with competing interactions popup.stage_title Розроблення мезоскопічної теорії для вивчення структурних і термодинамічних властивостей негомогенних двокомпонентних сумішей колоїдних частинок з конкуруючою взаємодією та розвинення ґраткової моделі іонної рідини в плоскій ультратонкій порі на випадок потрійної міжіонної взаємодії для вивчення фазової поведінки. Head Patsahan Oksana V., Доктор фізико-математичних наук Registration Date 13-12-2024 Organization Institute of Condensed Matter Physics of the National Academy of Sciences of Ukraine popup.description1 Development of a theory for the systems with the local variance of density or concentration taken into account, its application to selected models, and verification of theoretical predictions by simulations. popup.description2  A model for a monolayer of two types of particles spontaneously forming ordered patterns is studied by a mesoscopic theory. We obtain three stable phases with periodic concentration: the lamellar phase with alternating stripes of the two components, and a hexagonal arrangement of the clusters of the minority component in the liquid of the majority component. The hexagonal phases are stable only at relatively high temperatures. The spatial distributions of a monolayer in a two-component system with competing interactions were studied using the density functional theory. It was observed that spatial confinement promotes the formation of periodic phases; however, in certain cases, it can disrupt periodic phases that were found in the system without walls. The lattice model appleid to analyze the behavior of an ionic fluid in an ultranarrow pore, containing only one layer of ions, is extended to the case of ternary interactions between ions.It is shown that taking into account ternary interionic interactions leads to a decrease of the region of the ordered phase. Product Description popup.authors Dudka Maksym L. Patsahan Taras M. popup.nrat_date 2024-12-13 Close