Physics Department Colloquia |
Events During the Week of September 4th through September 11th, 2011
Monday, September 5th, 2011
- Labor Day
Tuesday, September 6th, 2011
- No events scheduled
Wednesday, September 7th, 2011
- No events scheduled
Thursday, September 8th, 2011
- No events scheduled
Friday, September 9th, 2011
- Transport in High-mobility Two-dimensional Electron Systems
- Time: 3:30 pm
- Place: 2241 Chamberlin Hall (coffee at 4:30 pm)
- Speaker: Maxim Vavilov, University of Wisconsin-Madison
- Abstract: Two dimensional (2D) electron systems show fascinating behavior in magnetic fields at low temperatures when the quantum nature of electron propagation plays a crucial role. During the last decade, a series of experiments explored properties of 2D systems far away from thermodynamic equilibrium. I will give an overview of the most exciting observed phenomena, which include a zero-resistance state and non-linear differential conductivity under illumination of 2D electrons by microwaves. A qualitative explanation of these phenomena will be given, based on the quantum description of 2D electron transport in the presence of a disordered impurity potential and strong applied electric fields.
- Host: Department