Resonant Photoemission and X-Ray Photoemission Spectra of UPd2Al3, UPt2Si2 and U2PtSi3

Takeo Ejima, Shoji Suzuki, Shigeru Sato, Noriaki Sato, Shin Ichi Fujimori, Mitsuki Yamada, Ken Sato, Takemi Komatsubara, Tadao Kasuya

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    The valence-conduction band structures of UPd2Al3, UPt2Si2 and U2PtSi3 have been studied by means of photoemission spectroscopy with synchrotron radiation. The spectral distributions of the partial densities of states with various symmetries in the valence-conduction states are obtained by means of resonant photoemission. The 5f partial energy-distribution-curves have sharp Fermi edges. Single peaks of the 5f partial spectra are located at the Fermi edges and the spectra have long tails ascribable to superimposed indistinguishable hump features. It is suggested that they are caused by the existence of satellites. The u4f spectra are also measured. They exhibit well-defined satellite features. The distinctive line shapes of the main lines and the satellites are analyzed using the Kotani-Toyozawa model, on which the interpretation of the 5f partial spectra is based implicitly.

    Original languageEnglish
    Pages (from-to)2428-2442
    Number of pages15
    Journaljournal of the physical society of japan
    Volume63
    Issue number6
    DOIs
    Publication statusPublished - 1994

    Keywords

    • UPS
    • UPd2Al3
    • UPt2Si2.U2PtSi3
    • XPS
    • electronic structure
    • heavy fermion
    • resonant photoemission spectroscopy
    • uranium compounds

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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