Electronic properties and atomic structure of (Ti, Zr, Hf)(Ni, Cu) metallic glasses

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Abstract

The available experimental and theoretical data on the electronic density of states at the Fermi level, n(EF), of non-magnetic melt-quenched TE100-xTLx 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 summarized, in order to derive experimental n(EF) values. A comparison with n(EF) data from theoretical band structure calculations shows good overall agreement, both qualitative and quantitative. By taking into account recent results on the different structural modifications of Ti, Zr and Hf metals, an extrapolation of the composition dependence of n(EF) in TE-TL glasses to pure amorphous TE metals suggests that the local structure of these TE-TL amorphous alloys may be described by an fcc-like atomic arrangement. Some other reported results, which supply further evidence for the proposed fcc-like local structure in this type of metallic glass, are also discussed.

Original languageEnglish
Pages (from-to)131-150
Number of pages20
JournalJournal of Non-Crystalline Solids
Volume180
Issue number2-3
DOIs
Publication statusPublished - Jan 1995

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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