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arXiv · 2511.10932

Enhancing Micromagnetics Simulations with a Third-Order Semi-Implicit Projection Method

Changjian Xie·Cheng Wang
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Abstract

Micromagnetics depends on high-fidelity numerical methods for magnetization dynamics. This work proposes a third-order temporal accuracy scheme for the Landau-Lifshitz-Gilbert equation, addressing accuracy-efficiency trade-offs in existing methods. Validated via nanostrip simulations (representative of real devices), the scheme offers two key advantages: rigorous third-order accuracy (surpassing existing simulation methods) and higher computational efficiency, ensuring fast convergence without precision loss. It maintains stability for Gilbert damping \(\alpha\) from $0.1$ to $10$, avoiding non-physical states. The magnetic microstructures it captures are consistent with established methods, confirming reliability for physical analysis.

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Changjian Xie, Cheng Wang. 2025-11-14. Enhancing Micromagnetics Simulations with a Third-Order Semi-Implicit Projection Method. https://arxiv.org/abs/2511.10932

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