Why can't paramagnetic material be magnetized permanently?
The magnetism of matter depends on the size of magnetism and the susceptibility of magnetization to ferromagnetic, ferrimagnetic, paramagnetic, antiferromagnetic and other categories.
Because electrons in these materials to have lined the outer magnetic moment of electron spin and orbital motion produced by the interaction of these interactions are not offset each other, it is difficult to eliminate the residual magnetism in the magnetization, magnetic materials of foreign show.
