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Two-Stage Kondo Effect in a Quantum Dot at a High Magnetic Field
| Title: | Two-Stage Kondo Effect in a Quantum Dot at a High Magnetic Field |
| Authors: | van der Wiel, W. G. Browse this author | | De Franceschi, S. Browse this author | | Elzerman, J. M. Browse this author | | Tarucha, S. Browse this author | | Kouwenhoven, L. P. Browse this author | | Motohisa, J.6 Browse this author →KAKEN DB | | Nakajima, F. Browse this author | | Fukui, T. Browse this author →KAKEN DB |
| Authors(alt): | 本久, 順一6 |
| Issue Date: | 25-Mar-2002 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review Letters |
| Volume: | 88 |
| Issue: | 12 |
| Start Page: | 126803 |
| Publisher DOI: | 10.1103/PhysRevLett.88.126803 |
| Abstract: | We report a strong Kondo effect (Kondo temperature ∼4 K) at high magnetic field in a selective area growth semiconductor quantum dot. The Kondo effect is ascribed to a singlet-triplet transition in the ground state of the dot. At the transition, the low-temperature conductance approaches the unitary limit. Away from the transition, for low bias voltages and temperatures, the conductance is sharply reduced. The observed behavior is compared to predictions for a two-stage Kondo effect in quantum dots coupled to single-channel leads. |
| Rights: | Copyright © 2002 American Physical Society |
| Relation: | http://www.aps.org/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/5523 |
| Appears in Collections: | 量子集積エレクトロニクス研究センター (Research Center for Integrated Quantum Electronics) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 本久 順一
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