Domain switching

Domain switching refers to the process where magnetic regions within a material, called domains, change their orientation in response to an external magnetic field. Each domain has magnetic moments aligned in a specific direction. When a magnetic field is applied, these domains can reorient or shift to align more closely with the field, causing the overall magnetization of the material to change. This is fundamental in magnetic devices like transformers and memory storage, as it allows materials to efficiently respond to magnetic influences, enabling data writing or energy transfer.