A novel approach for the calculation of localized vibrational surface states on the tip of an isolated linear atomic chain extending from the surface boundary into the bulk of two dimensional systems

Y. Pennec, O. Rafil, A. Khater

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    4 Citations (Scopus)

    Abstract

    A two dimensional system consisting of a half-infinite linear chain of A atoms wedged between two quarter-infinite square lattices of B atoms is considered. We present a novel approach for the calculation of the localized vibrational states on the extremity of the chain A at the boundary, as a function of the system force constants. The chain, regarded as an isolated inhomogeneity extending from the boundary into the bulk of the system, together with the surface boundary, break the symmetry in two dimensions. The matching method is generalized in two dimensions in order to treat the evanescent vibrational states of this system.

    Original languageEnglish
    Pages (from-to)777-782
    Number of pages6
    JournalJournal of Electron Spectroscopy and Related Phenomena
    Volume64-65
    Issue numberC
    DOIs
    Publication statusPublished - 12 Dec 1993

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    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Radiation
    • Atomic and Molecular Physics, and Optics
    • Condensed Matter Physics
    • Spectroscopy
    • Physical and Theoretical Chemistry

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