The atomic level and uses of magnetic materials

The electron configuration of atoms in magnetic materials affects their magnetic properties. Temperature also plays a role, as magnetic materials have a Curie temperature above which they lose their magnetism. Magnetic materials are widely used in technology, such as hard drives for data storage, speakers for sound production, motors and generators for energy transformation, and medical imaging in MRI machines. Recent advancements in rare earth magnets and ongoing research in developing new magnetic materials for high-efficiency electronics and energy applications are significant. However, there are environmental concerns associated with the mining and refining of rare earth elements, promoting efforts towards sustainability and recycling of magnetic materials.