Journal
SOLID STATE COMMUNICATIONS
Volume 157, Issue -, Pages 6-10Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2012.12.008
Keywords
Excitons; Quantum wells; Bose condensation; Spin splitting
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Funding
- Russian Foundation for Basic Research
- Presidium of the Russian Academy of Sciences (programme Basic Research in Nanotechnologies and Nanomaterials)
- Division of Physical Sciences, Russian Academy of Sciences (programme Strongly Correlated Electrons in Solids and Solid State Structures)
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Magnetoluminescence of spatially indirect dipolar excitons in 25 nm GaAs/AlGaAs single quantum well collected within a lateral potential trap has been studied in Faraday geometry. The paramagnetic spin splitting of the luminescence line of the heavy-hole excitons in the trap centre is completely compensated at magnetic field below critical value approximate to 2 T. The effect of spin splitting compensation is caused by the exchange interaction in dense exciton Bose gas which is in qualitative agreement with the existing theoretical concepts. (c) 2012 Elsevier Ltd. All rights reserved.
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