Migration of particles on heterogeneous bivariate lattices: the universal analytical expressions for the diffusion coefficients

0449566 - FZÚ 2016 RIV NL eng J - Journal Article
Tarasenko, Alexander - Boháč, Petr - Jastrabík, Lubomír
Migration of particles on heterogeneous bivariate lattices: the universal analytical expressions for the diffusion coefficients.
Physica E: Low-Dimensional Systems and Nanostructures. Roč. 74, Nov (2015), s. 556-560. ISSN 1386-9477. E-ISSN 1873-1759
R&D Projects: GA MŠMT LO1409; GA TA ČR TA03010743
Institutional support: RVO:68378271
Keywords : surface diffusion * heterogeneous lattices * lattice-gas models * kinetic Monte Carlo simulation
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.904, year: 2015

We have derived the analytical expressions for the diffusion coefficients describing the particle diffusion on different heterogeneous lattices. It occurs that these expressions can be used for description of the particle diffusion on the patchwise lattices. The coverage dependencies of the center-of-mass and Fickian diffusion coefficients obtained for some patchwise lattices by the Monte Carlo simulation can be perfectly fitted by these expressions. The good coincidence of the numerical data with the theoretical results demonstrates the applicability of the analytical expressions for the wide class of heterogeneous lattices.
Permanent Link: http://hdl.handle.net/11104/0251090