Open AccessTransport properties of lattice fluid with SALR-potential on a simple square lattice
Author(s) -
Yaroslav Groda,
R.N. Lasovsky
Publication year - 2021
Publication title -
žurnal belorusskogo gosudarstvennogo universiteta. fizika
Language(s) - English
Resource type - Journals
eISSN - 2617-3999
pISSN - 2520-2243
DOI - 10.33581/2520-2243-2021-1-90-101
Subject(s) - lattice diffusion coefficient , lattice (music) , statistical physics , monte carlo method , square lattice , thermodynamics , tracer , jump process , jump , effective diffusion coefficient , chemistry , physics , condensed matter physics , mathematics , quantum mechanics , statistics , medicine , acoustics , magnetic resonance imaging , ising model , radiology
The transport properties of the lattice fluid with the attraction interaction between the nearest and repulsion interaction between the next-next-nearest neighbours on the square lattice are investigated. Computer simulation by the Monte Carlo method of the diffusion process in the specified system has been realised. The jump and tracer diffusion coefficients were determined. The dependence of the diffusion coefficients versus the concentration of adparticles and the interaction parameter of the model is investigated. The activation energy of jump and tracer diffusion determined. The possibility of estimating the jump diffusion coefficient of the lattice fluid with competing interactions using the Zhdanov’s relation on the base of information on the equilibrium properties of the system and the diffusion coefficient of a Langmuir (non-interacting) lattice gas is shown. In the future, it is planned to use the obtained results to study transport processes in 3D lattice systems which is suitable for describing the processes of mass or charge transfer in the volumes of solids.