[PAST EVENT] Physics Colloquium - Schwiete, Georg
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Georg Schwiete, University of Alabama, Assistant Professor, Department of Physics and Astronomy
and Center for Materials for Information Technology (MINT), Title of Talk: Transport phenomena in two-dimensional electron systems
Abstract: In this talk, I will discuss a number of physical mechanisms that have a strong influence on electronic transport in two-dimensional systems. At the lowest temperatures, localizating and delocalizing tendencies compete near a metal-insulator transition. At intermediate temperatures, the transport is dominated by scattering of electrons on a self-consistently created potential near impurities. When further increasing the temperature, electron-electron collisions gain importance and eventually lead to hydrodynamic behavior in the electronic system. I will explain how these mechanisms and phenomena reveal themselves in different ways in electric, thermal and thermoelectric transport.