The Magnetic Susceptibilities of Aluminium-rich Transition Metal Intermetallic Compounds

In aluminium-rich transition-metal intermetallic compounds the behaviour of transition-metal atoms in an electron-rich environment can be studied. Electron-density maps, prepared from x-ray data, and considerations of Brillouin zones for these compounds have not, up to the moment, yielded accurate information on the state of the transition-metal atoms. The results of the measurements of the magnetic susceptibilities of some such compounds are given: from these measurements information on the 3d state of the transition-metal atoms is derived.