Platinum–samarium

Platinum-samarium is a binary inorganic compound of platinum and samarium with the chemical formula PtSm. This intermetallic compound forms crystals.

Synthesis
Fusion of stoichiometric amounts of pure substances:
 * $$\mathsf{ Pt + Sm \ \xrightarrow{1810^oC}\ SmPt }$$

Physical properties
Platinum-samarium forms crystals of rhombic crystal system, space group P nma, cell parameters a = 0.7148 nm, b = 0.4501 nm, c = 0.5638 nm, Z = 4, structure similar to that of iron boride (FeB).

The compound melts congruently at a temperature of ≈1810 °C.