Magnetic properties of new compounds RuMn2Sn and RuMn2Si

New compounds RuMn2Z (Z = Si, Sn) have been synthesized. X-ray diffraction measurements have confirmed that RuMn2Z (Z = Si, Sn) crystallizes in a Heusler-like cubic structure. The lattice parameters of RuMn2Si and RuMn2Sn at room temperature are estimated to be 5.8260 Å and 6.2195 Å, respectively. Magnetization measurements have been carried out in fields up to 50 kOe for RuMn2Z (Z = Si, Sn). Furthermore, the temperature dependence of initial permeability of RuMn2Sn has been studied. RuMn2Sn shows ferrimagnetic behavior. The spontaneous magnetic moment at 5 K and the Curie temperature of RuMn2Sn are found to be of 1.68 μB/f.u. and 272.1 K, respectively. RuMn2Si exhibits spin-glass-like behavior with a freezing temperature estimated to be about 50 K.

► New compounds RuMn2Z (Z = Si, Sn) have been synthesized.
► X-ray diffraction measurements have confirmed that RuMn2Z (Z = Si, Sn) crystallizes in a Heusler-like cubic structure.
► Magnetization measurements in fields up to 50 kOe have been carried out for RuMn2Z (Z = Si, Sn).
► RuMn2Sn and RuMn2Si exhibit ferrimagnetic and spin-glass-like behavior, respectively.