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Correlation between electronic structure and properties of TE-TL metallic glasses

The electronic density of states (DOS) in TE-TL glassy alloys (TE = Ti, Zr, Hf and TL = Co, Ni, Cu) shows split-band structure with DOS at the Fermi level, N(EF), dominated with TE d-states. Thus, the effect of alloying with TL can be approximated with dilution of TE and all properties directly related to N(EF) show simple, often linear variation with TL content. Here, we review the correlation between the DOS and superconducting, magnetic, thermal (electronic specific heat coefficient) and mechanical properties and stability of Zr-TL alloys. We also provide new data for Ti-TL and Hf-TL glassy alloys which show the same simple correlation between DOS and physical properties and also show systematic change in going from TE = Ti to Hf. Finally, we use these results in order to deduce the DOS and properties of hypothetic pure amorphous Zr, Ti and Hf .

Metallic glasses; Transition Metals; Superconductivity; Mechanical properties; Magnetic susceptibility

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