Sökning: "Physics with spec. in Atomic"
Visar resultat 1 - 5 av 66 avhandlingar innehållade orden Physics with spec. in Atomic.
1. Multipoles in Correlated Electron Materials
Detta är en avhandling från Uppsala : Acta Universitatis UpsaliensisSammanfattning : 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. LÄS MER
2. Trends in Magnetism From Strong Correlations to “-onics” Technology
Detta är en avhandling från Uppsala : Acta Universitatis UpsaliensisSammanfattning : 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. LÄS MER
3. Effect of Substrate on Bottom-Up Fabrication and Electronic Properties of Graphene Nanoribbons
Detta är en avhandling från Uppsala : Acta Universitatis UpsaliensisSammanfattning : 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. LÄS MER
4. Magnetization Dynamics in Ferromagnetic Thin Films Evaluation of Different Contributions to Damping in Co2FeAl and FeCo Film Structures
Detta är en avhandling från Uppsala : Acta Universitatis UpsaliensisSammanfattning : Static and dynamic magnetic properties of Co2FeAl and Fe65Co35 alloys have been investigated. Co2FeAl films were deposited at different temperatures and the deposition parameters were optimized with respect to structural and magnetic properties. As a result, a film with B2 crystalline phase was obtained without any post-annealing process. LÄS MER
5. Atomic Scale Design of Clean Energy Materials Efficient Solar Energy Conversion and Gas Sensing
Detta är en avhandling från Uppsala : Acta Universitatis UpsaliensisSammanfattning : 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. LÄS MER
