Open AccessApproximation of Multiparticle Distribution Function in Micromagnetic Modeling
Author(s) -
А. В. Иванов,
Sergey A. Khilkov,
Zipunova Elizaveta
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1740/1/012025
Subject(s) - bbgky hierarchy , statistical physics , hierarchy , distribution function , distribution (mathematics) , function (biology) , physics , mathematics , mathematical physics , mathematical analysis , quantum mechanics , law , evolutionary biology , biology , political science
We propose the new system of equations for magnetodynamics. It is based on BBGKY hierarchy and uses a new approximations of mulit-particles distribution functions, which takes nearest-neighbour correlations into account. Thus we call the new system of equations correlational magnetodynamics system (CMD). It consists of well known Landau–Lifshitz–Bloch(LLB) equation complemented with an equation for two-particles correlations. Compared to traditional LLB equation, numerical simulations with CMD produces results that are closer to atomistic simulations.