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 5 of 5 for “"Polarization Reversal"”.
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Modeling of materials with internal variables using a thermomechanical approach
… A phenomenological formulation of polarization reversal is proposed, and then a fully-coupled thermo-electro-mechanical model is developed. It is shown that the theory developed can describe the electromechanical behavior of piezoceramics well.
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UNCOVERING FUNDAMENTAL PHYSICS OF ENERGY MATERIALS WITH QUANTUM MECHANICS, MOLECULAR DYNAMICS, AND APPLIED MACHINE LEARNING
… uncover, for the first time, the mechanism for polarization reversal in this novel next-generation ferroelectric material. We then develop new kinetic theory to describe the uncovered anomalous switching behavior that can be expanded to other similar phenomena across disciplines. Overall, these …
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Ab Initio study of dynamically tunable catalysis for carbon dioxide reduction
… dynamic modification of catalytic behavior via polarization reversal in a ferroelectric substrate (i.e tunable catalysis) in order to reduce the energy required for these reactions. Dynamically Tunable Catalysis (catalysis enhanced by real-time changes in the surface chemistry of the catalyst) …
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An investigation into six-fold domain wall vertices in improper ferroelectrics, and their potential as one dimensional pn-junctions
… fields that arise due to the development of a polarization (≈ 1020 cm-3). Extracted carrier mobilities of hundreds of cm2Vs-1 (up to and above 670 cm2Vs-1) are somewhat surprising and provide further evidence that charged domain walls possess drastically different physical properties from the …
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Carrier manipulation in graphene/ferroelectric hybrid structures
… graphene charge carriers and the ferroelectric polarization. The experimental methods utilized to overcome these challenges are introduced for device fabrication and characterization. The resulting graphene/PbZr0.2Ti0.8O3 hybrid structures presented here exhibit bidirectional interdependency …