Magnetodynamics Calculation of Magnetic Spiral Structure

The object of study in this work are magnetic structures in the MnSi compound and their behavior depending on the external magnetic field and temperature. The phenomenological thermodynamic model of Buck-Jensen for crystals belonging to the space group P_(2_1 3) is used as a theoretical model. Additionally, the interaction energies of the magnetic moments of the other with the external magnetic field are considered. The main goal of the work was to carry out calculations of the parameters of magnetic structures arising in the MnSi compound at various temperatures and magnetic fields and writing a program that visualizes the magnetization vectors S ⃗ in space for MnSi -like systems and also explains the features of the experimental magnetic field magnetic field in MnSi -like systems. The MCR report contains an introduction, problem statement, an algorithm for minimizing free energy, a description of the calculation results, conclusions from the calculation results, a conclusion and a list of references. In the first part of the work, the tasks are described, and a theoretical description of graphene and its modifications is given. The second part provides an algorithm for minimizing free energy and a description of the calculation results. The work includes 21 illustrations and 30 references used.