Magnetism of surface alloys of the type MxN1−x/Rh(1 1 1)

► Ab initio density functional theory study of magnetic surface alloys on Rh(1 1 1). ► Even bulk-immiscible components can show mixing on a surface. ► Pb, when surface alloyed with Fe, Co or Ni, reduces their magnetic moments. ► Fe, Co and Ni show higher moments on hcp sites than on fcc sites of Rh(1 1 1) surface.