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Ordering Phenomena in Rare-Earth Nickelate Heterostructures

  • MatthiasĀ Hepting

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xvi
  2. Matthias Hepting
    Pages 13-29
  3. Matthias Hepting
    Pages 31-67
  4. Matthias Hepting
    Pages 109-144
  5. Back Matter
    Pages 145-147

About this book

Introduction

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) demonstratingfull 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.

 

 

Keywords

Strongly Correlated Electron Systems Magnetic Resonant Elastic X-Ray Scattering Raman Spectroscopy on Thin Films Electronic Phase Transitions of Nickelate Magnetic Phase Transitions of Nickelate Spin Density Wave Phases Spatially Confined Conduction Electrons

Authors and affiliations

  • MatthiasĀ Hepting
    • 1
  1. 1.Max Planck Institute for Solid State ResearchStuttgartGermany

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-60531-9
  • Copyright Information Springer International Publishing AG 2017
  • Publisher Name Springer, Cham
  • eBook Packages Physics and Astronomy
  • Print ISBN 978-3-319-60530-2
  • Online ISBN 978-3-319-60531-9
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site