Polarized neutron scattering study on antiferromagnetic states in CeRh0.6Co0.4In5

Abstract Polarized neutron scattering experiments were performed on mixed compound CeRh0.6Co0.4In5 to clarify the nature of the low-temperature ordered states. Three nonequivalent Bragg peaks, characterized by the wave vectors of q h ∼ 1 2 , 1 2 , 0.3 , q 1 ∼ 1 2 , 1 2 , 0.4 and q c = 1 2 , 1 2 , 1 2 , were observed at 1.4 K. These Bragg peaks are found to occur entirely in spin-flip channel. This indicates that these Bragg peaks originate from the magnetic scattering, i.e., the antiferromagnetic orders with three different modulations appear in this compound.