The Au–Cd system contains great variety of compounds as compared with the lighter Cu-Zn system.
Au–Cd compounds are stabilized with the Hume-Rothery rules at certain counts of electron per atom.
Stimulating factor for Au and Cd to create ordered superlattices is a high atomic number difference.
Complex Au-Cd phases tend to form nearly spherical Brillouin-Jones zones close to the Fermi sphere.