From a molecular viewpoint,discuss the temperature dependence of susceptibility for diamagnetism,paramagnetism,and ferromagnetism.

(N/A) Magnetic susceptibility is defined as $\chi = \frac{I}{H}$,where $I$ is the magnetization intensity and $H$ is the magnetizing force.
$1$. Diamagnetism: It arises due to the orbital motion of electrons in an atom,which develops a magnetic moment opposite to the applied magnetic field. Since this effect is inherent to the electronic structure,the susceptibility of diamagnetic materials is essentially independent of temperature.
$2$. Paramagnetism: It arises due to the alignment of permanent atomic magnetic moments in the direction of the applied field. As temperature increases,thermal agitation disrupts this alignment,leading to a decrease in susceptibility. According to Curie's Law,$\chi \propto \frac{1}{T}$.
$3$. Ferromagnetism: It arises due to the strong alignment of atomic magnetic moments within domains. Similar to paramagnetism,increasing temperature disrupts this alignment. Above a specific temperature called the Curie temperature $(T_c)$,a ferromagnetic material transforms into a paramagnetic material,and its susceptibility follows the Curie-Weiss Law: $\chi = \frac{C}{T - T_c}$.