An (Al,Cu)13(Fe,Cu)4 phase of [trideca(aluminium/copper) tetra(iron/copper)] was obtained by the high-pressure sintering (HPS) process of a mixture with composition Al78Cu15Fe7. Structure analysis suggests that Cu atoms can replace both Al and Fe atoms. Such findings support previous anomalous X-ray scattering (AXS) results although deviate from other reports. The new phase adopts the λ-Al13Fe4 structure type where Cu atoms partially occupy the 2c and 4i sites for Al and Fe atoms, respectively, with occupancies of 0.233 (5) and 0.173 (16).
