ISSP - The institute for Solid State Physics

Seminar
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[ISSP Colloquiums]
Exciton Condensates are Super!
Title : Exciton Condensates are Super!
Date :
Time :
2015/6/17(Wed)
4:30 PM - 5:30 PM 
Place : Lecture Room (A632), 6th Floor, ISSP   
Lecturer : Prof. Allan H. MacDonald
Affiliation : Physics Department, University of Texas at Austin
Summary : The spatially-indirect exciton condensate (SIXC) is an interesting ordered electronic state in
which coherence is spontaneously established between particles localized in separate two-dimensional layers. To date SIXC states have been discovered only in dou-ble-quantum-well semiconductor heterojunctions and only in the strong magnetic field quan-tum Hall regime. I will discuss some properties SIXCs, commenting on their counterflow superfluidity, their collective excitations, and on similarities and differences relative to su-perconductors, easy-plane ferromagnets and anti-ferromagnets, and the standard model of particle physics. Finally I will discuss the some recent theoretical work SIXC states in bi-layers formed from two-dimensional materials, which will hopefully be observed in the fu-ture.
Contact : Yamashita Minoru, Kato Takeo