JOURNAL ARTICLE

Bose-Einstein condensation of excitons in Cu2O: progress over 30 years

David Snoke, G M Kavoulakis
Reports on Progress in Physics 2014, 77 (11): 116501
25345654
Experiments on Bose-Einstein condensation (BEC) of excitons in the semiconductor Cu2O started over 30 years ago, as one of the first serious attempts at exciton BEC. Early claims were based on spectroscopic signatures and transport data which have since been reinterpreted, in large part because the Auger recombination process for excitons was not well understood. Understanding of the Auger process has advanced, and recent experiments have made significant progress toward exciton BEC. We review the history of experiments on exciton BEC in Cu2O, the Auger recombination process, and the prospects for observing exciton BEC in this system in the near future.

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