The Magnetic Band-Structures of Ordered PtxFe1-x, PtxCo1-x, and PtxNi1-x (x = 0.25, 0.50, and 0.75)

The electronic band structures of the ordered L1(2) and L1(0) phases of the PtxM1-x (M = Fe, Co and Ni) alloys were investigated using spin-polarized density functional theory (DFT). The relative contributions of both itinerant (Stoner) and localized magnetism at the high-symmetry k-points were determined and discussed qualitatively. Significant directional effects were identified along the A and R directions of the L1(0) and L1(2) alloys, respectively, and are discussed in terms of charge channeling effects.