First-principles calculations (DFT, DMFT) are very successful in describing materials at a unit cell scale. Simplified models have often inspired these approaches and have a great pedagogical value, as well as enable modelling at larger scales, where the performance of functional materials is often defined. For instance, switching of ferroic materials is determined by the dynamics of their complex domain arrangements, and novel electronic and memory devices are being developed using domain walls and skyrmio
Extraction of low-energy effective spin models from ab-initio and applications
High-throughput magnetic materials screening