HYDRODYNAMIC AND BALLISTIC TRANSPORT IN ULTRA-CLEAN 2D ELECTRON SYSTEMS
This work is broadly on hydrodynamic transport in mesoscopic systems, resulting from strong electron-electron interactions. In the first part, we consider electrons are in near thermal equilibrium with each other, and for which case we calculate conductance by solving hydrodynamic equations. We do this for the Corbino and Hall bar geometries, and also for two-carrier transport due to electrons and holes. In the latter part, we shift our focus to systems where e-e scattering length is not the smallest length scale. For this, we study transport in the more general framework of Boltzmann theory. Specifically, we look at effect of e-e interactions on tunnelling in p-n junctions and on photoresponse of a point contact in graphene.
magnetoresistance, photoresponse, electron hydrodynamics, graphene, 2D electron gas, Boltzmann theory
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