Stannides, transition metal ternary

So far more than 180 rare earth-transition metal-plumbides have been reported. They crystallize with 23 different structure types. Apart from the few lead rich plumbides with YbsRlpSnis and related structures, only plumbides with 33 at% or even lower lead content have been reported. Some ternary systems exhibit large liquidus ranges in the lead rich regions at 870 °C. Through phase analytical investigations at lower temperatures one will certainly get access to new lead rich phases. In view of the more than 500 and 850 rare earth-transition metal-stannides and indides, respectively, the lead based systems certainly have a great potential for many more phases to be discovered. 

Maple, M.B., H.C. Hamaker and L.D. Woolf, 1982, Superconductivity, magnetism and their mutual interaction in ternary rare earth rhodium borides and some ternary rare earth transition metal stannides, in Superconductivity in Ternary Compounds n. Topics in Current Physics, Vol. 34 (Springer, Berlin) pp. 99-141. 

The resistivities of the ternary stannides have different values and temperature dependences because of the variety of their composition and crystal structures. Skolozdra (1993) classified the stannides by their resistivity behaviours from the curvature of the p(T) function in the range 80-360 K. A tendency that stannides with large M contents have a bigger curvature has been found. A comparison of the influence of different metals (Fe, Co, Ni, Cu) on curvature indicated that as the transition of M from iron to copper occurs, the curvature of the p(f) function decreases and all practically studied copper stannides have a linear p(T) dependence. 

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