Influence of crystals fields on the magnetic form factor of samarium

Abstract

It is calculated that crstal fields, with inclusion of mixing of higher multiplets into the ground J = 5/2 state, have a substantial effect on the magnetic form factor of Sm3+. From the neutron diffraction data obtained by Koehler and Moon for the cubic site in Sm metal it follows that the quartet Γ8 is lowest, with the sixth-order crystalline field parameter A6ritr6 positive. The conduction electron moment residing on Sm is estimated to be of the order of 0.4 μB.