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Inverted Electron-Hole Alignment in InAs-GaAs Self-Assembled Quantum Dots
Abstract
New information on the electron-hole wave functions in InAs-GaAs self-assembled quantum dots is deduced from Stark effect spectroscopy. Most unexpectedly it is shown that the hole is localized towards the top of the dot, above the electron, an alignment that is inverted relative to the predictions of all recent calculations. We are able to obtain new information on the structure and composition of buried quantum dots from modeling of the data. We also demonstrate that the excited state transitions arise from lateral quantization and that tuning through the inhomogeneous distribution of dot energies can be achieved by variation of electric field.
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Cited by
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Lodahl, P., Mahmoodian, S., & Stobbe, S. (2015) · Reviews of Modern Physics · doi:10.1103/revmodphys.87.347 · Cited by 1,465
Structural properties of self-organized semiconductor nanostructures
Stangl, J., Holý, V., & Bauer, G. (2004) · Reviews of Modern Physics · doi:10.1103/revmodphys.76.725 · Cited by 801
Theory of pure dephasing and the resulting absorption line shape in semiconductor quantum dots
Krummheuer, B., Axt, V. M., & Kuhn, T. (2002) · Physical Review B · doi:10.1103/physrevb.65.195313 · Cited by 516
Bayer, M., & Forchel, A. (2002) · Physical Review B · doi:10.1103/physrevb.65.041308 · Cited by 451
Direct Observation of Controlled Coupling in an Individual Quantum Dot Molecule
Krenner, H. J., Sabathil, M., Clark, E. C., Kress, A., Schuh, D., Bichler, M., Abstreiter, G., & Finley, J. J. (2005) · Physical Review Letters · doi:10.1103/physrevlett.94.057402 · Cited by 368
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Metadata
- Authors
- Fry, P. W., Itskevich, I. E., Mowbray, D. J., Skolnick, M. S., Finley, J. J., Barker, J. A., O'Reilly, E. P., Wilson, L. R., Larkin, I. A., Maksym, P. A., Hopkinson, M., Al-Khafaji, M., David, J. P. R., Cullis, A. G., Hill, G., & Clark, J. C.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2000-01-24
- Volume
- 84
- Issue
- 4
- Pages
- 733-736
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1988817816
- Cited by
- 524
- References
- 0
- FWCI
- 31.06
- Type
- journal article
- Language
- en
- Open access
- closed
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- Fry, P. W., Itskevich, I. E., Mowbray, D. J., Skolnick, M. S., Finley, J. J., Barker, J. A., O'Reilly, E. P., Wilson, L. R., Larkin, I. A., Maksym, P. A., Hopkinson, M., Al-Khafaji, M., David, J. P. R., Cullis, A. G., Hill, G., & Clark, J. C. (2000). Inverted Electron-Hole Alignment in InAs-GaAs Self-Assembled Quantum Dots. Physical Review Letters. https://doi.org/10.1103/physrevlett.84.733
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