Bose–Einstein condensation of excitons in bilayer electron systems
By J. Eisenstein, Allan H. MacDonald. Nature, 2004
694 citations recorded by the source corpus.
An exciton is the particle-like entity that forms when an electron is bound to a positively charged ‘hole’. An ordered electronic state in which excitons condense into a single quantum state was proposed as a theoretical possibility many years ago. We review recent studies of semiconductor bilayer systems that provide clear evidence for this phenomenon and explain why exciton condensation in the quantum Hall regime, where these experiments were performed, is as likely to occur in electron–electron bilayers as in electron–hole bilayers. In current quantum Hall excitonic condensates, disorder induces mobile vortices that flow in response to a supercurrent and limit the extremely large bilayer counterflow conductivity.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/c3550316ab2e499151b4d190d6fa7d4aa0d0731e
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In Atomic and Molecular Physics, and Optics
- Allan H. MacDonald
- Jung-Jung Su
- Xiang Zhang
- Ashvin Vishwanath
- M. Koshino
- Takashi Taniguchi
- Kenji Watanabe
In Condensed Matter Physics
Citations in the corpus
- Excitons in atomically thin 2D semiconductors and their applications (2017, background): “In addition, as excitons are Bosonic particles, they can condensate to form Bose-Einstein condensates and exhibit superfluid-like transport [3, 4].”
- How to make a bilayer exciton condensate flow (2008, background): “Experimental studies of quantum Hall exciton condensates have already made it clear[10, 14] that this pessimistic conclusion is not valid.”