Question

Write some examples of magnetic susceptibility?

Answer 1

Magnetic Susceptibility:

The degree of magnetization of a material in response to an applied magnetic field is measured by magnetic susceptibility, which is a dimensionless proportionality constant.

On the basis of magnetic susceptibility, magnetic materials can be classed as paramagnetic, diamagnetic, or ferromagnetic.

Diamagnetic materials:

1. Constant negative, tiny susceptibilities characterize diamagnetic materials. Temperature changes have just a minor impact.
2. The value of magnetic susceptibility is negative because diamagnetic material does not have permanent magnetic dipoles.
3. Bismuth is an example of a diamagnetic substance.

Paramagnetic materials:

1. Paramagnetic materials are characterized by constant positive small susceptibility, less than $\frac{1}{1000}$ at room temperature.
2. An external magnetic field partially aligns paramagnetic materials. The electron spins in paramagnetic materials are in all directions.
3. The value of magnetic susceptibility is constant because the enhancement of the magnetic field due to the alignment of magnetic dipoles is relatively negligible with the applied field.
4. An example of paramagnetic material is platinum.

Ferromagnetic materials:

1. Positive big susceptibilities characterize ferromagnetic materials, which do not have constant susceptibilities but have relativity huge values that can surpass $1000$.
2. The value of magnetic susceptibility is very large because ferromagnetic materials are strongly magnetized in magnetic fields. The electron spins in ferromagnetic materials are all uniformly oriented.
3. Iron and Cobalt are examples of ferromagnetic materials.