Ordering phenomena in rare-earth nickelate heterostructures
134,33 $

Ordering phenomena in rare-earth nickelate heterostructures

MATTHIAS HEPTING


Ordering phenomena in rare-earth nickelate heterostructures

MATTHIAS HEPTING

134,33 $ 134,33 $
Régulier: 134,33 $
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Livre numérique non disponible
Résumé
This thesis presents an experimental study of ordering phenomena in rare-earth nickelate-based heterostructures by means of inelastic Raman light scattering and elastic resonant x-ray scattering (RXS). Further, it demonstrates that the amplitude ratio of magnetic moments at neighboring nickel sites can be accurately determined by RXS in combination with a correlated double cluster model, and controlled experimentally through structural pinning of the oxygen positions in the crystal lattice. The two key outcomes of the thesis are: (a) demonstrating full control over the charge/bond and spin order parameters in specifically designed praseodymium nickelate heterostructures and observation of a novel spin density wave phase in absence of the charge/bond order parameter, which confirms theoretical predictions of a spin density wave phase driven by spatial confinement of the conduction electrons; and (b) assessing the thickness-induced crossover between collinear and non-collinear spin structures in neodymium nickelate slabs, which is correctly predicted by drawing on density functional theory.
Détails
Titre
Ordering phenomena in rare-earth nickelate heterostructures
Prix
134,33 $
Sujet
Format Poche
Non
Langue
Français/French
Date de publication
2017-06-28
ISBN
9783319605319
Code Interne
2273045
Numéro de produit
2273045
Format numérique
pdf
Disponibilité
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Protection
Adobe DRM
Entrepôt Numérique
NUMILOG

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