^Paramagnetism

Paramagnetism

About 90% paramagnetism is due to spin motion of electrons. Paramagnetics are permanent weak magnets & posses magnetism even in the absence of external magnetising field. On placing a paramagnetic in external magnetising field its atomic dipoles tend to align so as to get weakly magnetized in the direction of the magnetizing field. Paramagnetism varies inversely with the temp, with the increase temperature difficulty of ordering the magnetic moments of the individual atoms increases.