Magnetic structure of the TbCu2In compound

We have performed neutron diffraction experiments on a polycrystalline TbCu2In compound. This compound crystallizes in the cubic L21-type crystal structure and orders antiferromagnetically at TN = 7.5 K. Below TN, the Tb magnetic moments equals 8.81(19) μB, and forms a sine-wave modulated structure which is stable down to 1.5 K.