Lone Pair Ordering in Mixed Valence Oxide Perovskites and Superconductors
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Open Access
Type
ThesisThesis type
Masters by ResearchAuthor/s
Zhang, JialeAbstract
This dissertation describes investigations of BaBiO3 and of its lead-doped counterparts, aiming to elucidate the relationship between charge disproportionation and structural change. To characterize the long-range average structures of these materials with varying temperatures, ...
See moreThis dissertation describes investigations of BaBiO3 and of its lead-doped counterparts, aiming to elucidate the relationship between charge disproportionation and structural change. To characterize the long-range average structures of these materials with varying temperatures, powder neutron diffraction data collected using the time-of-flights diffractometers NOMAD and POWGEN was analysed using the Rietveld method. These analyses were followed by neutron total scattering analysis from data measured on the same instruments, to obtain short-range local structural information, using pair distribution function methods.
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See moreThis dissertation describes investigations of BaBiO3 and of its lead-doped counterparts, aiming to elucidate the relationship between charge disproportionation and structural change. To characterize the long-range average structures of these materials with varying temperatures, powder neutron diffraction data collected using the time-of-flights diffractometers NOMAD and POWGEN was analysed using the Rietveld method. These analyses were followed by neutron total scattering analysis from data measured on the same instruments, to obtain short-range local structural information, using pair distribution function methods.
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Date
2025Rights statement
The author retains copyright of this thesis. It may only be used for the purposes of research and study. It must not be used for any other purposes and may not be transmitted or shared with others without prior permission.Faculty/School
Faculty of Science, School of ChemistryAwarding institution
The University of SydneyShare