A two-phase magnetic structure of DySi2

Abstract Neutron diffraction performed on the powder binary DySi 2 had shown that, at room temperature, the crystal structure could be described by adopting the orthorhombic Imma system with two sites 4e and 8h for Dy and Si, respectively. At 2 K, the antiferromagnetic nature of the compound is confirmed. Two distinct magnetic phases are found with propagation vectors k 1 =[0,0,0] and k 2 =[ 1 2 , 2 2 ,0] with non-collinear magnetic moments μ 1 =3.58(4) μ B and μ 2 =3.34(2) μ B .