Magnetic materialscan simply be categorized into three; ferromagnetic, paramagnetic, and diamagnetic, where each type exhibits different behaviours when interacting with magnetic fields. So, let's start with ferromagnetic materials, which are strongly attracted to magnetic fields, thereby becoming permanently magnetized. Now in the absence of an external magnetic field, these materials have randomly oriented magnetic domains, but when exposed to a magnetic field, these domains align in the direction of the field, which results in a strong overall magnetization. And even after removing the magnetic field, this alignment tends to persist, making ferromagnetic materials ideal for creating permanent magnets. Secondly, we have paramagnetic materials which have unpaired electrons in their atomic or molecular orbitals. When exposed to a magnetic field, the materials become magnetized but then lose their magnetism when the external field is removed. And since these materials have a random orientation of the moments, the overall magnetization is relatively weak. Thirdly, diamagnetic materials are weakly repelled by magnetic fields and don't possess permanent magnetic moments like ferromagnetic and paramagnetic materials. So, when exposed to a magnetic field, these materials develop a temporary induced magnetic moment in the opposite direction of the applied field. This is a result of the orbital motion of electrons within the atoms or molecules.