| Download | - View accepted manuscript: Theory of fine structure of correlated exciton states in self-assembled semiconductor quantum dots in a magnetic field (PDF, 680 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1103/PhysRevB.84.245314 |
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| Author | Search for: Trojnar, Anna H.1; Search for: Kadantsev, Eugene S.1; Search for: Korkusinski, Marek1; Search for: Hawrylak, Pawel1 |
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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 | A theory of the fine structure of correlated exciton states in self-assembled parabolic semiconductor quantum dots in a magnetic field perpendicular to the quantum dot plane is presented. The correlated exciton wave function is expanded in configurations consisting of products of electron and heavy-hole 2D harmonic oscillator states (HO) in a magnetic field and the electron spin Sz = ±1/2 and a heavy-hole spin τz = ±3/2 states. Analytical expressions for the short- and long-range electron-hole exchange Coulomb interactionmatrix elements are derived in the HO and spin basis for arbitrary magnetic field. This allows the incorporation of short- and long-range electron-hole exchange, direct electron-hole interaction, and quantum dot anisotropy in the exact diagonalization of the exciton Hamiltonian. The fine structure of ground and excited correlated exciton states as a function of a number of confined shells, quantum dot anisotropy, and magnetic field is obtained using exact diagonalization of the many-body Hamiltonian. The effects of correlations are shown to significantly affect the energy splitting of the two bright exciton states. |
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| Publication date | 2011-12-19 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 19335197 |
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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 | 18b7364c-7741-4cc4-96fe-fa566aec7933 |
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| Record created | 2012-02-29 |
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| Record modified | 2020-04-21 |
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