Types of Magnetic Material

Based on magnetic susceptibilities, magnetic materials are divided into

• Diamagnetic Material
• Paramagnetic Material
• Ferromagnetic Material

Diamagnetic Material

Diamagnetic materials have a negative magnetic susceptibility, which means they are weakly repelled by a magnetic moment. A negative magnetization is produced when the material is exposed to the external magnetic field. From this we can say that magnetic susceptibility is negative.

Examples of diamagnetic materials includes Nitrogen, copper, bromine, noble gases, chemical elements and crystalline solid materials such as and diamond.

Paramagnetic Material

In paramagnetic materials or substances in the absence of a magnetic field, the magnetic moments do not interact with each other, and they are randomly arranged. The atomic magnetic moments are aligned in the direction of the field whenever a field is applied and that will induce a net positive magnetization and positive susceptibility.

Magnetic lines of forces produced by the applied field are attracted towards the paramagnetic substance. The magnetic susceptibility of paramagnetic materials is positive. Examples of paramagnetic material include oxygen, Li, Na, Mn and all the platinum group metals.

Ferromagnetic Material

In the absence of an external magnetic field, ferromagnetic materials contain magnetic dipole moments that are parallel to each other. Magnetic susceptibility is large and positive for ferromagnetic material. The source of ferromagnetic is the spin of the electrons.

Examples of ferromagnetic substances or materials include nickel, cobalt and iron

Magnetic Susceptibility is the degree of magnetization of a material in response to an applied magnetic field. It is a dimensional constant. Magnetic susceptibility explains whether a material is repelled away from the magnetic field or attracted toward a magnetic field.

In this article, we have covered Magnetic Susceptibility Definition, its Formula, Examples, and others in detail.