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1. |
Record Nr. |
UNINA9910522579403321 |
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Titolo |
Commercial Law Journal |
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Pubbl/distr/stampa |
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DePaul University College of Law |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Periodico |
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2. |
Record Nr. |
UNINA9910254582303321 |
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Autore |
Hepting Matthias |
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Titolo |
Ordering Phenomena in Rare-Earth Nickelate Heterostructures / / by Matthias Hepting |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2017 |
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ISBN |
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Edizione |
[1st ed. 2017.] |
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Descrizione fisica |
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1 online resource (XVI, 147 p. 63 illus., 56 illus. in color.) |
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Collana |
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Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053 |
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Disciplina |
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Soggetti |
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Superconductivity |
Superconductors |
Spectroscopy |
Microscopy |
Surfaces (Physics) |
Interfaces (Physical sciences) |
Thin films |
Materials science |
Strongly Correlated Systems, Superconductivity |
Spectroscopy and Microscopy |
Surface and Interface Science, Thin Films |
Characterization and Evaluation of Materials |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"Doctoral Thesis accepted by University of Stuttgart, Germany." |
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Nota di bibliografia |
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Includes bibliographical references at the end of each chapters. |
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Nota di contenuto |
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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. |
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Sommario/riassunto |
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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) 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. . |
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