Orbital magnetism in UFe2

Abstract The magnetization density of UFe 2 has been evaluated from self-consistent energy band calculations using screened exchange interactions. The calculated total magnetic moment is 1.4 μ B /f.u. and almost entirely due to an Fe moment of 0.72 μ B . The small uranium moment consists of spin and orbital moments of −0.19 and 0.17 μ B , respectively. The calculated magnetic amplitude is in excellent agreement with the results of neutron diffraction experiments. The calculated orbital contribution to the Fe moment of 0.1 μ B is one order of magnitude larger than measured.