Crystal structure and magnetic properties of the compound FeDy6Sb2

The crystal structure of a compound FeDy6Sb2 was determined by X-ray powder diffraction using the Rietveld method. The compound crystallizes in the hexagonal, space group P6¯2m (No. 189) with the Fe2P structure type and lattice parameters a = 0.81449(5) nm, c = 0.41641(3) nm, z = 1 and Dcalc = 8.842 g/cm3. The maximum magnetic entropy change ΔSM for the compound is 3.41 J kg− 1 K− 1 near its Curie temperature (143.4 K) on the magnetic field changes of 0–2.0 T.