Physics Department Colloquia

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Exciton Condensates are Super!
Date: Friday, October 6th
Time: 3:30 pm
Place: 2241 Chamberlin Hall
Speaker: Allan MacDonald , The University of Texas at Austin
Abstract: 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 conclusively demonstrated 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 engineering similar effects at room temperature either by engineering favorable conditions in van der Waals material bilayers or by designing ferromagnetic materials with appropriate properties.
Host: Robert Joynt
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