Neutron induced Gamma Fluorescent Polarised Neutron Reflectometry as a complimentary technique to complex problems in surface magnetism
Mardi 18 décembre 2012 15:30
- Duree : 1 heure
Lieu : CTRM Control Room, ESRF - 6 Rue Jules Horowitz - Grenoble
Orateur : Anton DEVISHVILI (ILL)
Neutron induced gamma fluorescence have attracted increasing interest in recent year. Similarly to grazing incidence X-Ray fluorescence, neutron induced gamma fluorescence permits investigation of surface impurities, contamination, chemicals trace analysis and thin surface layers and multi-layer structures. Measurement of secondary emitted radiation from the neutron absorbing nuclei gives an insight on the absorption profile as well as neutron propagation in the media, which in conjunction with primary scattered neutron intensity can extend the analysis of the sample composition beyond the conventional limits. The advantages of such an analysis will be demonstrated mostly for magnetic investigations of amorphous CoFeB/MgO tunnelling magneto-resistance junctions as well as few other examples. The applicability and limitations of this technique as well as technical challenges will be discussed.
Contact : isabelle.combe@esrf.fr
Discipline évènement : (Physique)
Entité organisatrice : (ESRF)
Nature évènement : (Séminaire)
Evènement répétitif : (Séminaire ESRF)
Site de l'évènement : Polygone scientifique
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