Magnetic form factor and susceptibility of neodymium

Abstract

Polarised neutron diffraction has been used to determine the magnetic form factor and the induced moments on the hexagonal and cubic sites of neodymium, for a field applied along the c -direction. When combined with earlier measurements performed with a field in the basal plane [1], the uniaxial anisotropy coefficents B 2 0 could be evaluated. We find B 2 0 (hex)= 0.064(±0.005) meV; B 2 0 (cub) = 0.010(±0.005) meV.