The anomalous Hall effect is a phenomenon in physics where a magnetic field induces a transverse electric field in a material, resulting in a Hall voltage that is not solely dependent on the applied electric field. This effect is "anomalous" because it cannot be explained by the classical Hall effect, which arises from the Lorentz force acting on moving charge carriers in a magnetic field. Research in anomalous Hall effect is important for understanding the behavior of magnetic materials and has applications in fields such as spintronics, magnetic data storage, and magnetic sensors. Scientists study the anomalous Hall effect in various materials, including ferromagnetic metals, insulators, and semiconductors, to better understand the mechanisms behind this phenomenon and develop new technologies based on it.