Sökning: "electronic topological transition"
Visar resultat 1 - 5 av 11 avhandlingar innehållade orden electronic topological transition.
1. Theory of electronic structure and transport in heterostructure nanowires
Sammanfattning : Today, semi-conductor nanowires can be grown with very high precision, using epitaxy. This allows for studies of new nanowire-based quantum devices, likely to be part of novel quantum technologies in the future. This thesis concerns nanostructures based on InAs nanowires. LÄS MER
2. Electronic Structure and Lattice Dynamics of Elements and Compounds
Sammanfattning : The elastic constants of Mg(1-x)AlxB2 have been calculated in the regime 0.... LÄS MER
3. Electronic transitions and correlation effects : From pure elements to complex materials
Sammanfattning : Macroscopic properties of real materials, such as conductivity, magneticproperties, crystal structure parameters, etc. are closely related or evendetermined by the configuration of their electrons, characterized by electronicstructure. By changing the conditions, e.g, pressure, temperature, magnetic/electric field, chemical doping, etc. LÄS MER
4. Electronic structure and transport in exotic nanostructures
Sammanfattning : This thesis explores the physics of nanostructures involving nanowires, quantum dots, superconductors, and topological insulators. These systems serve as excellent platforms for fundamental physics studies and quantum technology applications. LÄS MER
5. Consequences of a non-trivial band-structure topology in solids : Investigations of topological surface and interface states
Sammanfattning : The development and characterization of experimental setups for angle-resolved photoelectron spectroscopy (ARPES) and spin- and angle-resolved photoelectron spectroscopy (SARPES) is described. Subsequently, the two techniques are applied to studies of the electronic band structure in topologically non-trivial materials. LÄS MER