This article contains analysis and comparison of different methods of the cross section calculation for the magnetic scattering of thermal neutrons by paramagnetic ion (Trammell method, Lovesey method, Stassis method, ...

Some thoughts concerning the role of theoretical physics in educating the teachers of physics are presented by the authors of the paper. They evaluate the importance of theoretical physics in the university syllabi and ...

The relativistic correction is derived for the general formula of the cross section for magnetic scattering of thermal neutrons by paramagnetic ion, obtained by Lovesey for nonrelativistic approximation.