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The Kondo Effect in an Artificial Quantum Dot Molecule
Abstract
Double quantum dots provide an ideal model system for studying interactions between localized impurity spins. We report on the transport properties of a series-coupled double quantum dot as electrons are added one by one onto the dots. When the many-body molecular states are formed, we observe a splitting of the Kondo resonance peak in the differential conductance. This splitting reflects the energy difference between the bonding and antibonding states formed by the coherent superposition of the Kondo states of each dot. The occurrence of the Kondo resonance and its magnetic field dependence agree with a simple interpretation of the spin status of a double quantum dot.
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Cites
Quantum computation with quantum dots
Loss, D., & DiVincenzo, D. P. (1998) · Physical Review A · doi:10.1103/physreva.57.120 · Cited by 6,840
Cited by
Coherent and collective quantum optical effects in mesoscopic systems
Brandes, T. (2005) · Physics Reports · doi:10.1016/j.physrep.2004.12.002 · Cited by 434
Observation and electric current control of a local spin in a single-molecule magnet
Komeda, T., Isshiki, H., Liu, J., Zhang, Y.-F., Lorente, N., Katoh, K., Breedlove, B. K., & Yamashita, M. (2011) · Nature Communications · doi:10.1038/ncomms1210 · Cited by 431
Tunable Nonlocal Spin Control in a Coupled-Quantum Dot System
Craig, N. J., Taylor, J. M., Lester, E. A., Marcus, C. M., Hanson, M. P., & Gossard, A. C. (2004) · Science · doi:10.1126/science.1095452 · Cited by 332
Exchange Interaction between Single Magnetic Adatoms
Wahl, P., Simon, P., Diekhöner, L., Stepanyuk, V. S., Bruno, P., Schneider, M. A., & Kern, K. (2007) · Physical Review Letters · doi:10.1103/physrevlett.98.056601 · Cited by 210
Metadata
- Authors
- Jeong, H., Chang, A. M., & Melloch, M. R.
- Venue
- Science
- Published
- 2001-09-21
- Volume
- 293
- Issue
- 5538
- Pages
- 2221-2223
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2032593781
- Cited by
- 293
- References
- 1
- FWCI
- 9.67
- Type
- journal article
- Language
- en
- Open access
- closed
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