Abstract
New compounds RuMn 2Z (Z = Si, Sn) have been synthesized. X-ray diffraction measurements have confirmed that RuMn 2Z (Z = Si, Sn) crystallizes in a Heusler-like cubic structure. The lattice parameters of RuMn 2Si and RuMn 2Sn 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 RuMn 2Z (Z = Si, Sn). Furthermore, the temperature dependence of initial permeability of RuMn 2Sn has been studied. RuMn 2Sn shows ferrimagnetic behavior. The spontaneous magnetic moment at 5 K and the Curie temperature of RuMn 2Sn are found to be of 1.68 μ B/f.u. and 272.1 K, respectively. RuMn 2Si exhibits spin-glass-like behavior with a freezing temperature estimated to be about 50 K.
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