Seminarium Fizyki Materii Skondensowanej

Around 40 years ago it was suggested, that under some conditions transport in crystalline materials should be dominated by electron-electron scattering effects and therefore governed by the equations of hydrodynamics. However,that prediction, made by Ghurzi, was far outside experimental reach in the past. Luckily in recent years advances in production of very pure materials allowed to conduct measurements, that indeed suggest presence of such 'hydrodynamic regime' in graphene.In this talk I will describe what does 'hydrodynamic regime' mean, why and when do we expect it, and what are the possible signatures of hydrodynamic behavior in transport measurements. Since the story of electron hydrodynamics(or, as some prefer to call it, viscous electronics) is far from being complete, I will also tell you about the open problems and some possibly interesting future directions.