2025/08/13 by Alexander J. Edwards, Kristi Doleh, Leonard Humphrey +8 · 1 voice
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Characterization and Applications of Magnetic Nanoparticles #Geomagnetism and Paleomagnetism Studies #Magnetic properties of thin films
paper · doi:10.1103/v9tg-9l9r
openalex publication_date 2025/08/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Domain-wall (DW) devices have garnered interest for diverse applications including memory, logic, and neuromorphic primitives; thus fast, accurate device models are imperative. Existing models of DW motion are suboptimal for large systems: They either devour computational resources, or oversimplify the physics. The authors propose a DW model inspired by the phenomenological similarities between the motion of a DW and that of a classical object subject to forces like friction or drag. This model predicts essentially the same DW motion as do micromagnetic simulations, but 4000\ifmmode×\else\texttimes\fi as fast. It is also faster than collective-coordinate models, and much more accurate than hyper-reduced models.