The structure of the icosahedral AlPdMn quasicrystal

Abstract

Abstract Neutron diffraction data were obtained from quasicrystals of the AlPdMn system and the isomorphic modifications AlPd(FeCr). From contrast variation effects, partial structure factors were determined. In the high-dimensional periodic description, the structure can be viewed as a six-dimensional cubic lattice belonging to the Pm space group, with a superstructure due to a chemical order which somewhat induces an F-type lattice.