mumax+: extensible GPU-accelerated micromagnetics and beyond
Lars Moreels, Ian Lateur, Diego De Gusem, Jeroen Mulkers, Maes, Jonathan, M. V. Miloševıć, Jonathan Leliaert, Bartel Van Waeyenberge · arXiv (Cornell University) · 2024
o address the challenges posed by current magnetism research into systems with complex magnetic ordering and interfaces, we developed mumax+, an extensible GPU-accelerated micromagnetic simulator with a Python user interface. It is a general solver for the space- and time-dependent evolution of the magnetization and related vector quantities, using finite difference discretization. Here, we present its design and verification and discuss features not available in mumax3, such as the modeling of antiferromagnets with magnetoelastic coupling. As an illustration of its capabilities, we show that mumax+ can predict antiferromagnetic domain walls and their velocity induced by spin transfer torques, as well as the dispersion relations for antiferromagnetic spin waves, elastic waves, and their magnetoelastic anticrossing behavior.