Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Nickelates"”.
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Electronic Structure and Emergent Orders in Correlated Nickelates
… this thesis unravel the physical properties of nickelates from three aspects. In the first part, we unveiled that the nanoscale electronic phase separation phenomena in nickelate are closely tied to phase transition criticality, highlighting that the scale-invariant inhomogeneity is an essential …
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Metal-insulator transition in yttrium- and neodymium-doped lanthanum nickelates
… Until recently, SC had not yet been found in any nickelates, including the isostructural infinite-layer RNiO₂. Recently, chemical reduction of RNiO₃/STO thin films (R =Nd₀.₈Sr₀.₂) using CaH₂ into the RNiO₂ infinite-layer phase was found to have a zero-resistivity measurement below T [subscript C]= …
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Theory of lattice effects on magnetic interactions in solids
… distortions on the magnetic properties of nickelates and manganites. These two families of materials have great potential in industrial applications in the fields of magnetic (superdense hard-drives, fast memory) and charge storage (batteries). The introduction and methods sections present …
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Cathode polarization effects in rare Earth nickelate cathodes for solid oxide fuel cells
… new class of cathode materials, rare-earth nickelates. The experimentally measured relationship between cathode polarization and oxygen partial pressure will be correlated with the underlying transport and surface exchange processes in both families of materials.
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Novel Transition-Metal Oxides Under Pressure
… superconducting transitions were explored on nickelates. For the first time, a temperature-dependent resistivity drop was reported for compressed Pr4Ni3O10, suggesting that bulk superconductivity is a more general property of Ruddlesden-Popper Ni-O stacks under pressure.
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Jahn-Teller distortions in layered nickel oxides
This thesis presents the results of my work on Jahn-Teller distorted transition metal oxides. The Jahn-Teller distortion is a key factor in important phenomena and applications of materials with octahedrally-coordinated transition metal ions such as batteries, high-temperature cuprate …