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Theses

ETUDE DE NANOSTRUCTURES
MAGNÉTIQUES PAR DIFFRACTION
RÉSONANTE ET COHÉRENTE DES
RAYONS X MOUS

Abstract : In this thesis, I present a study of magnetic nanostructures with soft x-ray resonant scattering.
The samples are stacks of epitaxial thin layers made of FePd alloys and Co/Pt multilayers deposited
on patterned Silicon substrates. In the first part, the samples are presented and charcterized
by means of conventional techniques and neutron measurements. Additionally, a micromagnetic
modelization is described. In the second part, soft x-ray scattering from the FePd layers is
measured at the L3-edge of Iron and modelized, in order to obtain information on the periodic
magnetic configuration of the samples. In the third part, I used a soft x-ray coherent beam in
order to characterize in detail the magnetic configuration of model samples. For this, an experimental
set-up is developed and a methodology is described to count photons on a CCD camera.
A Monte-Carlo algorithm is proposed and discussed, aiming to reconstruct the exact magnetic
configuration of a nanoline grating with perpendicular magnetization.
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Submitted on : Saturday, October 21, 2006 - 4:54:44 PM
Last modification on : Friday, July 10, 2020 - 7:58:30 AM
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Guillaume Beutier. ETUDE DE NANOSTRUCTURES
MAGNÉTIQUES PAR DIFFRACTION
RÉSONANTE ET COHÉRENTE DES
RAYONS X MOUS. Matière Condensée [cond-mat]. Institut National Polytechnique de Grenoble - INPG, 2005. Français. ⟨tel-00108493⟩

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