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Coupled Quantum Dots Fabricated by Cleaved Edge Overgrowth: From Artificial Atoms to Molecules
Open accessAbstract
Atomically precise quantum dots of mesoscopic size have been fabricated in the gallium arsenide–aluminum gallium arsenide material system by cleaved edge overgrowth, with a high degree of control over shape, composition, and position. The formation of bonding and antibonding states between two such “artificial atoms” was studied as a function of quantum dot separation by microscopic photoluminescence (PL) spectroscopy. The coupling strength within these “artificial molecules” is characterized by a systematic dependence of the separation of the bonding and antibonding levels, and of the PL linewidth, on the “interatomic” distance. This model system opens new insights into the physics of coupled quantum objects.
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Cited by
Coherent control of macroscopic quantum states in a single-Cooper-pair box
Nakamura, Y., Pashkin, Y. A., & Tsai, J. S. (1999) · Nature · doi:10.1038/19718 · Cited by 2,380
Electronic structure of quantum dots
Reimann, S. M., & Manninen, M. (2002) · Reviews of Modern Physics · doi:10.1103/revmodphys.74.1283 · Cited by 1,380
Optical Modes in Photonic Molecules
Bayer, M., Gutbrod, T., Reithmaier, J. P., Forchel, A., Reinecke, T. L., Knipp, P. A., Dremin, A. A., & Kulakovskii, V. D. (1998) · Physical Review Letters · doi:10.1103/physrevlett.81.2582 · Cited by 392
Metadata
- Authors
- Schedelbeck, G., Wegscheider, W., Bichler, M., & Abstreiter, G.
- Venue
- Science
- Published
- 1997-12-05
- Volume
- 278
- Issue
- 5344
- Pages
- 1792-1795
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2032925750
- Cited by
- 287
- References
- 0
- FWCI
- 10.28
- Type
- journal article
- Language
- en
- Open access
- green
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- Schedelbeck, G., Wegscheider, W., Bichler, M., & Abstreiter, G. (1997). Coupled Quantum Dots Fabricated by Cleaved Edge Overgrowth: From Artificial Atoms to Molecules. Science. https://doi.org/10.1126/science.278.5344.1792
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
