The Stokes–anti-Stokes intensity asymmetry, observed in Brillouin spectra from magnetic excitations, has been investigated experimentally and theoretically in single and multilayer films. In single films our investigation has led to a simple physical picture for the origin of the Stokes–anti-Stokes asymmetry and its dependence on polarization, magnetic field, and scattering geometry. In ferromagnetic bilayers and trilayers, while the full theory is needed to produce a quantitative description of the experimental results, the simple physical picture provides a useful qualitative guide to understanding the results.

Stokes anti-Stokes Brillouin intensity asymmetry of spin-wave modes in ferromagnetic films and multilayers

ZIVIERI, Roberto;VAVASSORI, Paolo;GIOVANNINI, Loris;NIZZOLI, Fabrizio;
2002

Abstract

The Stokes–anti-Stokes intensity asymmetry, observed in Brillouin spectra from magnetic excitations, has been investigated experimentally and theoretically in single and multilayer films. In single films our investigation has led to a simple physical picture for the origin of the Stokes–anti-Stokes asymmetry and its dependence on polarization, magnetic field, and scattering geometry. In ferromagnetic bilayers and trilayers, while the full theory is needed to produce a quantitative description of the experimental results, the simple physical picture provides a useful qualitative guide to understanding the results.
2002
Zivieri, Roberto; Vavassori, Paolo; Giovannini, Loris; Nizzoli, Fabrizio; Fullerton, E.; Grimsditch, M.; Metlushko, V.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1206733
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