Quantum delocalization of H on Pd(110): A vibrational study

N. Takagi, Y. Yasui, T. Takaoka, M. Sawada, H. Yanagita, T. Aruga, M. Nishijima

    Research output: Contribution to journalArticlepeer-review

    22 Citations (Scopus)


    The vibrational spectra of H on Pd(110) at 90 K have been measured in the low-H-coverage region, by using high-resolution electron-energy-loss spectroscopy. Three dipole-active loss peaks associated with H adatoms were observed at 87-89, 96-100, and 121-122 meV. A model calculation based on the delocalization of H was made, which gives the energy positions and relative intensity variation of the two loss peaks in the range of 87-100 meV for different H coverages. There is a reasonable agreement between the calculated and experimental results. It is concluded that vibrationally excited H atoms on Pd(110) are described by the delocalized model.

    Original languageEnglish
    Pages (from-to)13767-13771
    Number of pages5
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Issue number20
    Publication statusPublished - 1996

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics


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