Magnon scattering by a symmetric atomic well in free standing very thin magnetic films

R. Tigrine, A. Khater, B. Bourahla, M. Abou Ghantous, O. Rafil

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A theoretical model is presented for the study of the scattering of magnons at an extended symmetric atomic well in very thin magnetic films. The thin film consists of three cubic atomic planes with ordered spins coupled by Heisenberg exchange, and the system is supported on a non-magnetic substrate, and considered otherwise free from magnetic interactions. The coherent transmission and reflection scattering coefficients are derived as elements of a Landauer type scattering matrix. Transmission and reflection scattering cross sections are hence calculated specifically, as a function of the varying local magnetic exchange on the inhomogeneous boundary. Detailed numerical results for the individual incident film magnons, and for the calculated overall magnon conductance, show characteristic transmission properties, with associated Fano resonances, depending on the magnetic boundary conditions and on the magnon incidence.

Original languageEnglish
Pages (from-to)59-64
Number of pages6
JournalEuropean Physical Journal B
Volume62
Issue number1
DOIs
Publication statusPublished - Mar 2008
Externally publishedYes

Fingerprint

Magnetic thin films
magnetic films
magnons
Scattering
coherent radiation
scattering coefficients
S matrix theory
scattering
scattering cross sections
incidence
boundary conditions
thin films
Boundary conditions
interactions
Thin films
Substrates

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Magnon scattering by a symmetric atomic well in free standing very thin magnetic films. / Tigrine, R.; Khater, A.; Bourahla, B.; Abou Ghantous, M.; Rafil, O.

In: European Physical Journal B, Vol. 62, No. 1, 03.2008, p. 59-64.

Research output: Contribution to journalArticle

Tigrine, R. ; Khater, A. ; Bourahla, B. ; Abou Ghantous, M. ; Rafil, O. / Magnon scattering by a symmetric atomic well in free standing very thin magnetic films. In: European Physical Journal B. 2008 ; Vol. 62, No. 1. pp. 59-64.
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