Des propriétés électroniques aux excitations magnétiques
作者： S. Raymond
DOI: 10.1051/SFN/2010002
关键词:
摘要: Ce cours passe en revue les briques fondamentales du magnetisme necessaires pour comprendre la diffusion magnetique inelastique des neutrons : repulsion coulombienne, le couplage spin-orbite, champ cristallin et l’interaction d’echange inter-atomique. Une introduction aux ondes de spins est ensuite donnee differents types d’ordre magnetique. Finalement, deux exemples typiques reponse dynamique paramagnetique localise (PrOs4 Sb12 ) itinerant (Sr2 RuO4 sont detailles afin d’illustrer concepts introduits.
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