域壁模拟：磁动力学方程中的简单波

Pub Date : 2024-03-21 DOI:10.1134/s0965542524010093

L. A. Kalyakin, E. G. Ekomasov

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引用次数: 0

摘要

摘要考虑到外部磁场和阻尼，研究了一个模拟域壁运动的偏微分方程。在系数恒定的情况下，该方程有一组微不足道的解--平衡。研究了与从一个平衡到另一个平衡的动态过渡相对应的简单（行进）波形式的解。列出了在线性近似中稳定的波的可能类型。给出了计算这种波的速度的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Simulation of Domain Walls: Simple Waves in the Magnetodynamics Equation

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Simulation of Domain Walls: Simple Waves in the Magnetodynamics Equation

Abstract

A partial differential equation modeling the motion of a domain wall taking into account external magnetic fields and damping is considered. In the case of constant coefficients, this equation has a set of trivial solutions—equilibria. Solutions in the form of simple (traveling) waves that correspond to a dynamic transition from one equilibrium to another are studied. Possible types of waves that are stable in linear approximation are listed. A method for calculating the velocity of such waves is given.

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