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 - 1989
Externally publishedYes

Fingerprint

Magnets
Hydrodynamics
Backscattering
backscattering
Scattering
Light
disorders
scattering
decoupling
frequency shift
excitation
magnets
hydrodynamics
cross sections
approximation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Surface light backscattering from semi-infinite disordered magnetic systems and applications to Fe8B2. / Khater, A.; Cottam, M. G.

In: Journal of Physics: Condensed Matter, Vol. 1, No. 28, 016, 1989, p. 4667-4672.

Research output: Contribution to journalArticle

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