Ordering Phenomena in Rare-Earth Nickelate Heterostructures

Matthias Hepting (Autor)

Buch | Hardcover

XVI, 147 Seiten

2017 | 1st ed. 2017
Springer International Publishing (Verlag)
978-3-319-60530-2 (ISBN)

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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.

Introduction: Transition Metal Oxides and their Heterostructures.- The Rare-earth Nickelates.- Experimental Techniques.- Tunable Order Parameters in Nickelate Heterostructures.- Complex Magnetic Order in Nickelate Slabs.

Erscheinungsdatum	18.07.2017
Reihe/Serie	Springer Theses
Zusatzinfo	XVI, 147 p. 63 illus., 56 illus. in color.
Verlagsort	Cham
Sprache	englisch
Maße	155 x 235 mm
Gewicht	415 g
Themenwelt	Naturwissenschaften ► Chemie ► Analytische Chemie
	Naturwissenschaften ► Physik / Astronomie ► Festkörperphysik
	Technik ► Elektrotechnik / Energietechnik
	Technik ► Maschinenbau
Schlagworte	Characterization and Evaluation of Materials • Condensed matter physics (liquid state & solid sta • Condensed matter physics (liquid state & solid sta • electronic devices & materials • Electronic devices & materials • Electronic Phase Transitions of Nickelate • Magnetic Phase Transitions of Nickelate • Magnetic Resonant Elastic X-Ray Scattering • Physics • Physics and Astronomy • Raman Spectroscopy on Thin Films • scientific equipment, experiments & techniques • Scientific equipment, experiments & techniques • Spatially Confined Conduction Electrons • Spectroscopy and Microscopy • Spectrum analysis, spectrochemistry, mass spectrom • Spin Density Wave Phases • strongly correlated electron systems • Strongly Correlated Systems, Superconductivity • Surface and Interface Science, Thin Films • Testing of materials
ISBN-10	3-319-60530-5 / 3319605305
ISBN-13	978-3-319-60530-2 / 9783319605302
Zustand	Neuware