Band Structure and Optical Properties of Ordered AuCu3

Hans Lomholt Skriver, H. P. Lengkeek

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The optical spectra of ordered AuCu3 have been measured at low temperatures by a direct ellipsometric technique. We find several structural elements above the absorption edge as well as in the infrared. The measured spectra are interpreted in terms of the interband absorption calculated from an ab initio band structure obtained by the relativistic linear muffin-tin orbitals method. The band calculation reveals that ordered AuCu3 has distinct copper and gold d bands positioned in and hybridizing with an s band common to copper and gold. The calculated state density is found to be in good agreement with experiment. The Fermi surface is presented and is found to originate mainly in copper 4s and 4p states.
    Original languageEnglish
    JournalPhysical Review B
    Volume19
    Issue number2
    Pages (from-to)900-910
    ISSN2469-9950
    DOIs
    Publication statusPublished - 1979

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