Magnetic ordering differs in superlattices with ferromagnetic and antiferromagnetic interaction between the layers. There are also paramagnetic and ferromagnetic phases of magnetic materials. The paramagnetic materials' induced magnetic fields are very weak compared with ferromagnetic materials' magnetic fields. Only ferromagnetic, antiferromagnetic, and diamagnetic materials can satisfy this condition. These are the ferromagnetic, ferrimagnetic and antiferromagnetic materials. Magnetic hysteresis loops are not exclusive to materials with ferromagnetic ordering. Physical property changes include the possible loss of magnetic properties on ferromagnetic materials. Stray magnetic fields leaking from ferromagnetic targets also disturb the sputtering process. Similar to ferromagnetic materials the magnetic interactions are held together by exchange interactions. The principle used in scanning a ferromagnetic measuring scale magnetically does not exhibit these deficiencies. Magnetocrystalline anisotropy has a great influence on industrial uses of ferromagnetic materials. Computing the magnetic field and force exerted by ferromagnetic materials is difficult for two reasons. Superparamagnetism is a form of magnetism which appears in small ferromagnetic or ferrimagnetic nanoparticles. This effect causes energy loss due to frictional heating in susceptible ferromagnetic cores. Metallic iron and the alloy alnico are examples of ferromagnetic materials involving transition metals.