Magnetic Susceptibility

magnetic susceptibility

$\chi$. The relation between $\chi$ and $R_H$ depends on the origin of the
magnetization process. In a normal metal, $\chi$ is related to the electronic density of states at the
Fermi energy, $D(E_F)$, as $\chi = (\mu_B/N) D(E_F)$, where $N$ is the number of electrons per unit volume.
In a semiconductor with a parabolic band, $\chi$ is proportional to the carrier density $n$, as
$\chi = (\mu_B/N) n$. In a ferromagnet, the relation between $R_H$ and $\chi$ is more complicated,
because the spin-polarized band structure also plays an important role.

For the case of InMn$_x$As alloys, the carriers are electrons. In the past, $R_H$ and $\chi$ were
measured independently and were found to be consistent with the relation $R_H =
\chi/(\chi^2+\chi^2_0)$~\cite{hsu_tesla_1994}, where $\chi_0$ is the Curie susceptibility. This relation is
valid when a material is close to the Curie point, and when $|\chi|$ is much larger than $\chi_0$. It

Susceptibility in Physics

In physics, susceptibility is a measure of how easy it is to change the value of a physical quantity in response to an external influence. In other words, it measures how responsive a quantity is to a change in another quantity. For example, the electrical susceptibility of a material measures how easily the material can be electrically polarized in response to an external electric field.

Susceptibility of Magnetic Material

The susceptibility of a magnetic material is a measure of the material’s ability to be magnetized in the presence of a magnetic field. The higher the susceptibility, the more easily the material can be magnetized. The susceptibility is also a measure of the material’s ability to interact with a magnetic field.

What is Paramagnetic Material

?

A paramagnetic material is a material that is weakly attracted to a magnetic field.

2. Diamagnetic Material

A material in which the magnetic dipole moment induced by an external magnetic field is opposed to the external magnetic field. E.g. Cu, Au.

3. Paramagnetic Material These materials are slightly attracted by the magnetic field. The dipole moment of a paramagnetic atom is a function of the external applied magnetic field. E.g. Cr, Fe, Co.

4. Ferromagnetic Material These materials have the highest magnetic susceptibility. The dipole moments of the atoms are aligned parallel to each other. Fe, Co, Ni, Gd, and Tb.

5. Ferrimagnetic Material They have a magnetic moment due to the alignment of magnetic dipoles of opposite spin. E.g. Fe 3 O 4 and Fe 2 O 3 .

6. Antiferromagnetic Material They have a magnetic moment due to the alignment of magnetic dipoles of the same spin. E.g. Fe 3 O 4 , CuCl 2 , and MnO.

3. Ferromagnetic Material

4. Nano-sized ferromagnetic material

5. Nano-sized ferromagnetic material for magnetic resonance imaging (MRI) contrast agent

6. Nano-sized ferromagnetic material for magnetic temperature sensing

7. Nano-sized ferromagnetic material for magnetic particle heat exchanger

8. Nano-sized ferromagnetic material for magnetic particle filter

9. Nano-sized ferromagnetic material for magnetic particle pump

10. Nano-sized ferromagnetic material for magnetic particle separator

11. Nano-sized ferromagnetic material for magnetic particle valve

12. Nano-sized ferromagnetic material for magnetic particle motor

13. Nano-sized ferromagnetic material for magnetic particle generator

14. Nano-sized ferromagnetic material for magnetic particle power plant

15. Nano-sized ferromagnetic material for nano-electronic device

16. Nano-sized ferromagnetic material for magnetic particle spinner

17. Nano-sized ferromagnetic material for magnetic particle sensor

18. Nano-sized ferromagnetic material for magnetic particle antenna

19. Nano-sized ferromagnetic material for magnetic particle laser

20. Nano-sized ferromagnetic material for magnetic particle radar

21. Nano-sized ferromagnetic material for magnetic particle thruster

22. Nano-sized ferromagnetic material for magnetic particle amplifier

23. Nano-

Interesting Facts on Magnetic susceptibility

-The magnetic susceptibility of a material describes how the material is affected by a magnetic field.

-It can be used to identify the type of material, as different materials will have different susceptibilities.

-The magnetic susceptibility is also a measure of the strength of the magnetic field required to produce a given response in the material.

-The SI unit for magnetic susceptibility is the henry per meter (H/m).