X-ray resonant magnetic reflectivity of stratified magnetic structures: Eigenwave formalism and application to a W/Fe/W trilayer - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2012

X-ray resonant magnetic reflectivity of stratified magnetic structures: Eigenwave formalism and application to a W/Fe/W trilayer

Emmanuelle Jal
Stéphane Grenier
Aline Y. Ramos
Yves Joly
Jean-Marc Tonnerre
Nicolas Jaouen

Résumé

A formalism to simulate the reflectivity of electromagnetic waves by magnetic materials is presented with an application. The formalism is applicable to retrieve the magnetic moment density along the depth of magnetic materials with arbitrary magnetic moment direction using matricial algebra, including roughness between layers. The reflectivity is derived following a classical description with Maxwell equations and a permittivity built from the quantum scattering amplitude. Approximations on the relative power of the Thomson scattering and the magnetic terms are trackable in order to evaluate the validity of the formalism on a case-by-case basis, from the optical light regime up to soft and hard x-rays. The originality of the present formalism lies in the use of eigen-waves throughout the treatment. An application to a Fe thin film illustrates the methodology.
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Dates et versions

hal-00594121 , version 1 (18-05-2011)
hal-00594121 , version 2 (24-04-2012)

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Marta Elzo, Emmanuelle Jal, Oana Bunau, Stéphane Grenier, Aline Y. Ramos, et al.. X-ray resonant magnetic reflectivity of stratified magnetic structures: Eigenwave formalism and application to a W/Fe/W trilayer. Journal of Magnetism and Magnetic Materials, 2012, 324 (2), pp.105-112. ⟨10.1016/j.jmmm.2011.07.019⟩. ⟨hal-00594121v2⟩
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