Search for dissertations about: "Physics with spec. in Atomic"
Showing result 1 - 5 of 67 swedish dissertations containing the words Physics with spec. in Atomic.
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1. Multipoles in Correlated Electron Materials
University dissertation from Uppsala : Acta Universitatis UpsaliensisAbstract : Electronic structure calculations constitute a valuable tool to predict the properties of materials. In this study we propose an efficient scheme to study correlated electron systems with essentially only one free parameter, the screening length of the Coulomb potential. READ MORE
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2. Trends in Magnetism From Strong Correlations to “-onics” Technology
University dissertation from Uppsala : Acta Universitatis UpsaliensisAbstract : Despite of enormous progress in experimental nanophysics theoretical studies of low-dimensional electron systems still remains a challenging task. Indeed, most of the structures are strongly correlated, so that an effective perturbative treatment is impossible due to the lack of a small parameter. READ MORE
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3. Effect of Substrate on Bottom-Up Fabrication and Electronic Properties of Graphene Nanoribbons
University dissertation from Uppsala : Acta Universitatis UpsaliensisAbstract : Taking into account the technological demand for the controlled preparation of atomically precise graphene nanoribbons (GNRs) with well-defined properties, the present thesis is focused on the investigation of the role of the underlying metal substrate in the process of building GNRs using bottom-up strategy and on the changes in the electronic structure of GNRs induced by the GNR-metal interaction. The combination of surface sensitive synchrotron-radiation-based spectroscopic techniques and scanning tunneling microscopy with in situ sample preparation allowed to trace evolution of the structural and electronic properties of the investigated systems. READ MORE
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4. Nanoscale spin dynamics in ferromagnetic/normal-metal heterostructures for spin-logic application Engineering of spin-torque efficiency in Co2FeAl/β-Ta and Ru/FeCo/Ru multi-layers
University dissertation from Uppsala : Uppsala universitetAbstract : In the present information age, people across the globe generate an enormous digital footprint. Therefore, it is necessary to store and process the information in an elegant way. Spin-logic circuits are being considered potential candidates beyond CMOS integrated computing due to high clock speed, non-volatility, and higher logical efficiency. READ MORE
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5. Atomic Scale Design of Clean Energy Materials Efficient Solar Energy Conversion and Gas Sensing
University dissertation from Uppsala : Acta Universitatis UpsaliensisAbstract : The focus of this doctoral thesis is the atomic level design of photocatalysts and gas sensing materials. The band gap narrowing in the metal oxides for the visible-light driven photocatalyst as well as the interaction of water and gas molecules on the reactive surfaces of metal oxides and the electronic structure of kaolinite has been studied by the state-of-art calculations. READ MORE
