The verdet constant V of diamagnetic media is independent of temperature T. The ratio of the verdet constant V9 of some paramagnetic media and their susceptibility x satisfies the relation of V9/x=G(1+ RT).

• 逆磁性介质的费尔德常数V与温度T无关,有些顺磁性介质的费尔德常数V_p与磁化率x的比值V_p/X=G(1+RT);