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Journal article

Photoemission experiments on the valence band of transition metal trichalcogenides

Presents a synchrotron radiation photoemission study of the upper-valence-band states of four ZrSe3-structure compounds: ZrS3, ZrSe3, ZrTe3 and HfSe3. The sulphide and selenide spectra exhibit a characteristic five-peak structure in agreement with the calculated ZrSe3 density of states by Myron et al. (1981) and by Bullett (1979). The nature of these features is established by an interplay between the rehybridization of paired-anion ligand orbitals and the hybridization of unpaired-anion states with cation states. The spectrum of ZrTe3 exhibits only three peaks that appear related to three of the sulphide and selenide spectral features. The differences between the sulphide, selenide spectra and the telluride spectra are discussed in terms of the very large distance between paired-anion ligands and neighbour cations in the latter compound

    Keywords: hafnium compounds ; photoelectron spectra ; valence bands ; zirconium compounds

    Note:

    Dept. of Phys., Univ. of Wisconsin, Madison, WI, USA

    Copyright 1982, IEE

    1958155

    0392-6737

    valence band

    transition metal trichalcogenides

    synchrotron radiation photoemission study

    ZrS3

    ZrSe3

    ZrTe3

    HfSe3

    density of states

    rehybridization

    paired-anion ligand orbitals

    hybridization

    unpaired-anion states

    cation states

    Reference

    • LSE-ARTICLE-1982-015

    Record created on 2006-10-03, modified on 2016-08-08

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