Surface light backscattering from semi-infinite disordered magnetic systems and applications to Fe8B2

A. Khater, M. G. Cottam

    Research output: Contribution to journalArticle

    Abstract

    Calculations are presented for the differential cross section of light backscattered from surfaces of disordered magnetic systems, in the site disorder decoupling approximation. The results are general and show the distinct contributions to scattering owing to the presence of the surface and of the magnetic disorder, for the system one-excitations. They are applied for scattering from surfaces of amorphous magnets at small frequency shifts in the hydrodynamic region of scattering from small wavevector excitations. Although this 'washes out' the site disorder the results are nontrivial and illustrate scattering from diffusive and magnon-like bulk modes, as in Fe8b 2, where good agreement with experimental measurements is obtained.

    Original languageEnglish
    Article number016
    Pages (from-to)4667-4672
    Number of pages6
    JournalJournal of Physics: Condensed Matter
    Volume1
    Issue number28
    DOIs
    Publication statusPublished - 1 Dec 1989

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

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