University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Wednesday, March 25th 2015
3:35 pm:
Speaker: Allan MacDonald, University of Texas, Austin
Subject: Exciton Condensates are Super!
Refreshments served in Room 216 Physics after colloquium

Electronic systems can have a type of order in which coherence is spontaneously established between two distinct groups of electrons. So far this (particle-hole or exciton condensate) type of order has been found only in double-layer two-dimensional electron gas systems, and only in certain strong magnetic field limits. I will review some of the surprising superfluid transport effects that have been observed in double-layer exciton condensates, and speculate on the possibility of realizing similar effects at room temperature either by enhancing the stability of bilayer exciton condensate states or by designing ferromagnetic materials with appropriate properties.

Faculty Host: Alex Kamenev

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