| Download | - View accepted manuscript: Single-exciton energy shell structure in InAs/GaAs quantum dots (PDF, 671 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1103/PhysRevB.78.235313 |
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| Author | Search for: Awirothananon, S.; Search for: Raymond, S.1; Search for: Studenikin, S.1; Search for: Vachon, M.1; Search for: Render, W.1; Search for: Sachrajda, A.1; Search for: Wu, X.1; Search for: Babinski, A.; Search for: Potemski, M.; Search for: Fafard, S.; Search for: Cheng, S.J.; Search for: Korkusinski, M.1; Search for: Hawrylak, P.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
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| Format | Text, Article |
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| Abstract | The energy shell structure of a single exciton confined in a self-assembled quantum dot (QD), including excited states, is studied in a regime where the direct Coulomb attraction energy is comparable to the kinetic energy of the carriers. This is achieved via magnetophotoluminescence excitation spectroscopy experiments, where a magnetic field applied perpendicular to the plane of the QD is used to reveal the angular-momentum content of energy shells. The absorption spectrum of the QDs is modeled, and comparison with experiment allows us to relate the observed transitions to interband QD bound-state transitions. The blueshift of the absorption peaks compared to the emission peaks is then interpreted in terms of many-body interactions, and we show that for a highly symmetric situation, the observed energy difference gives a direct measurement of the extra exchange energy gained upon addition of an extra exciton in the QD. © 2008 The American Physical Society. |
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| Publication date | 2008 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21274614 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 118d2cfd-7857-4278-b9f1-e904804bad07 |
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| Record created | 2015-03-18 |
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| Record modified | 2020-06-04 |
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