Search for dissertations about: "Torbjörn Björkman"
Showing result 1 - 5 of 6 swedish dissertations containing the words Torbjörn Björkman.
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1. Magnetic and Structural Properties of f-electron Systems from First Principles Theory
Abstract : A series of studies of f-electron systems based on density functional theory methods have been performed. The focus of the studies has been on magnetic and structural properties, as well as investigating ways to handle strong electron correlation in these systems. READ MORE
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2. Alternative Methods for Assessment of Split Renal Function
Abstract : Living kidney donation is a clinical situation with unique features in the sense that healthy individuals voluntarily expose themselves to certain risks and inconveniences. Therefore, eliminating as much of the associated discomfort as possible is crucial. READ MORE
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3. Influence of defects and impurities on the properties of 2D materials
Abstract : Graphene, the thinnest material with a stable 2D structure, is a potential alternative for silicon-based electronics. However, zero band gap of graphene causes a poor on-off ratio of current thus making it unsuitable for logic operations. This problem prompted scientists to find other suitable 2D materials. READ MORE
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4. Theoretical prediction of properties of atomistic systems : Density functional theory and machine learning
Abstract : The prediction of ground state properties of atomistic systems is of vital importance in technological advances as well as in the physical sciences. Fundamentally, these predictions are based on a quantum-mechanical description of many-electron systems. READ MORE
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5. Exploring magnetocaloric materials by ab-initio methods
Abstract : This thesis explores the characterization of magnetocaloric materials from first-principles calculations, emphasizing entropy variation associated with the magnetocaloric effect. The study happens in the context of the search for new magnetocaloric materials to be applied in domestic magnetic refrigerators, as environmentally friendly and energy-efficient alternatives to conventional vapor-compression devices. READ MORE