Polarized neutron study of HoFe2

Abstract
Results of a polarized neutron experiment at 4.2 K on a single crystal of HoFe2 are reported. The magnetic moment of the iron atoms is 1.88(10) μB. In comparison with the LuFe2 results, 0.25 μB of the Fe moment is induced by interactions with holmium. Extrapolating the Ho magnetic amplitudes to sinϑ/λ=0 one finds a magnetic moment of 9.15(10) μB. This value is inconsistent with that deduced from exchange and crystal field parameters already known in this compound.