Magnetic material mainly refers to the excessive elements iron, cobalt,nickel alloys and other great ideas can be generated directly or magnetic substances.

Magnetic materials and structures from the material is divided into "metal and alloy magnetic materials" and "ferrite magnetic materials," two categories, ferrite magnetic material is divided into structure and crystal structure of polycrystalline materials.

From the applications perspective, magnetic material is divided into:soft magnetic materials, magnetic materials, magnetic recording -moment magnetic materials, magnetic materials, spin, and so kind. Soft magnetic materials, magnetic materials, magnetic recording - moments in both magnetic materials, metallic materials have ferrite materials;while rotating magnetic materials and high-frequency soft magnetic materials can only be a ferrite material, because the metal in high -frequency and microwave frequency eddy current effect will be enormous,leading to metallic magnetic materials can not be used, while the resistivity of ferrite is very high, will effectively overcome this problem, be widely applied.

Magnetic terms from the form. Including the powder materials, liquid materials, bulk materials, thin film materials. Very broad application of magnetic materials can be used for electro-acoustic, telecommunications, electricity meters, motors, but also for memory components, microwave components and so on. Can be used to record the language, music, images, information, tapes, computer magnetic storage devices, credentials and fares of passengers traveling magnetic card settlement