Charge control in laterally coupled double quantum dots
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7013
comunitat-uji-handle3:10234/8638
comunitat-uji-handle4:
INVESTIGACIONMetadata
Title
Charge control in laterally coupled double quantum dotsAuthor (s)
Date
2011-07-27Publisher
American Physical SocietyISSN
1098-0121; 1550-235XBibliographic citation
Physical Review B (2011) vol. 84, no. 4Type
info:eu-repo/semantics/articlePublisher version
http://link.aps.org/doi/10.1103/PhysRevB.84.041308Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
We investigate the electronic and optical properties of InAs double quantum dots grown on GaAs (001) and laterally aligned along the [110] crystal direction. The emission spectrum has been investigated as a function ... [+]
We investigate the electronic and optical properties of InAs double quantum dots grown on GaAs (001) and laterally aligned along the [110] crystal direction. The emission spectrum has been investigated as a function of a lateral electric field applied along the quantum dot pair mutual axis. The number of confined electrons can be controlled with the external bias, leading to sharp energy shifts which we use to identify the emission from neutral and charged exciton complexes. Quantum tunneling of these electrons is proposed to explain the reversed ordering of the trion emission lines as compared to that of excitons in our system. [-]
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- QFA_Articles [825]