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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-2220
DTSTART:20110909T203000Z
DURATION:PT1H0M0S
DTSTAMP:20260420T160453Z
LAST-MODIFIED:20111102T130431Z
LOCATION:2241 Chamberlin Hall (coffee at 4:30 pm)
SUMMARY:Transport in High-mobility Two-dimensional Electron Systems\, 
 Physics Department Colloquium\, Maxim Vavilov\, University of Wisconsi
 n-Madison
DESCRIPTION:Two dimensional (2D) electron systems show fascinating beh
 avior in magnetic fields at low temperatures when the quantum nature o
 f electron propagation plays a crucial role. During the last decade\, 
 a series of experiments explored properties of 2D systems far away fro
 m thermodynamic equilibrium. I will give an overview of the most excit
 ing observed phenomena\, which include a zero-resistance state and non
 -linear differential conductivity under illumination of 2D electrons b
 y microwaves. A qualitative explanation of these phenomena will be giv
 en\, based on the quantum description of 2D electron transport in the 
 presence of a disordered impurity potential and strong applied electri
 c fields.
URL:https://www.physics.wisc.edu/events/?id=2220
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