ELECTRONIC-PROPERTIES AND ATOMIC-STRUCTURE OF (TI, ZR, HF) (NI, CU) METALLIC GLASSES

The available experimental and theoretical data on the electronic dens ity of states at the Fermi level, n(E(F)), of non-magnetic melt-quench ed TE(100-x)TL(x) amorphous alloys (TE = Ti, Zr or Hf; TL = Ni or Cu) and for the corresponding crystalline counterparts is reviewed. First, the low-temperature specific heat and superconductive data are summar ized, in order to derive experimental n(E(F)) values. A comparison wit h n(E(F)) data from theoretical band structure calculations shows good overall agreement, both qualitative and quantitative. By taking into account recent results on the n(E(F)) of different structural modifica tions of Ti, Zr and Hf metals, an extrapolation of the composition dep endence of n(E(F)) in TE-TL glasses to pure amorphous TE metals sugges ts that the local structure of these TE-TL amorphous alloys may be des cribed by an fee-like atomic arrangement. Some other reported results, which supply further evidence for the proposed fee-like local structu re in this type of metallic glass, are also discussed.