A NEW APPROACH TO MODELING THE MAGNETIC BEHAVIOR OF HEUSLER ALLOY

This paper discusses a new approach to modeling the magnetic behavior of a Heusler alloy. The magnetization distribution in a sample is obtained by solving an equation that determines the resulting direction of the magnetization vector. This equation follows from the Landau–Lifshitz–Gilbert equation, which describes the entire process history. The demagnetization field is defined through a scalar magnetic potential using magnetostatic equations. These equations are associated with variational equations, which in many cases allows us to reduce the requirements for the smoothness of the desired solution and is very convenient for the numerical implementation of the problem. An iterative algorithm for sequentially refining the magnetization and potential is proposed. Numerical modeling of the steady-state magnetization distribution within a two-dimensional sample is performed, as well as the demagnetization field both within the sample and in the surrounding space for various external magnetic field values.