Samarium arsenide
Samarium arsenide is a binary inorganic compound of samarium and arsenic with the chemical formula SmAs. Synthesis
Samarium arsenide can be synthesised by heating of pure substances in vacuum:

Physical properties
Samarium arsenide forms crystals of a cubic system, space group Fm3m, cell parameters a = 0.5921 nm, Z = 4, of NaCl-structure. The compound melts congruently at 2257 °C. Uses
SmAs is used as a semiconductor and in photo optic applications. References

Arsenides
Samarium compounds
Semiconductor materials
Rock salt crystal structure