Stray field computation by inverted finite elements: a new method in micromagnetic simulations

TL;DR

This paper introduces a novel inverted finite element method for calculating stray fields in micromagnetic simulations, eliminating the need for truncation and demonstrating high efficiency and convergence.

Contribution

The paper presents a new inverted finite element approach for stray-field computation that is both convergent and efficient, advancing micromagnetic simulation techniques.

Findings

Method is convergent and accurate

No truncation needed in computations

Demonstrates high efficiency in simulations

Abstract

In this paper, we propose a new method for computing the stray-field and the corresponding energy for a given magnetization configuration. Our approach is based on the use of inverted finite elements and does not need any truncation. After analyzing the problem in an appropriate functional framework, we describe the method and we prove its convergence. We then display some computational results which demonstrate its efficiency and confirm its full potential.