nanomagnetism

Nanomagnetism studies magnetic behaviors at extremely small scales, typically at the level of nanometers (billionths of a meter). At this scale, magnetic properties can differ significantly from bulk materials, due to quantum effects and surface phenomena. For example, tiny magnetic particles can exhibit unique phenomena like superparamagnetism, where they behave as single magnetic units that can rapidly change their magnetic orientation with small energies. These properties are crucial for developing advanced technologies such as targeted drug delivery, high-density data storage, and magnetic sensors, by harnessing and manipulating magnetism at the nanoscale.