BaNiSn3-type ternary germanides SrMGe3 (M = Ir; Pd and Pt)

Ternary intermetallics SrMGe3 (M = Rh, Ir, Ni, Pd and Pt) have been prepared by arc melting. The crystal structure of these intermetallics was determined by single-crystal X-ray diffraction for M = Ir, Pd and Pt. The structure of those three intermetallics is BaAl4-derivative BaNiSn3-type with the space group I4mm (No. 107). The other two, Rh and Ni, are likely to take the same structure, speculated from the corresponding XRD patterns using the powder samples. Neither of them shows superconductivity down to 1.8 K.

Research highlightsIn this paper we report refined crystal structure of new BaNiSn3-type ternary germanides SrMGe3 (M = Ir, Pd and Pt). These intermetallics do not show superconductivity down to 1.8 K.