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The Kondo Effect in the Unitary Limit | W.G. van der Wiel
; S. De Franceschi
; T. Fujisawa
; J.M. Elzerman
; S. Tarucha
; L.P. Kouwenhoven
; | Date: |
26 Sep 2000 | Journal: | W.G. van der Wiel et al., Science 289, 2105 (2000) | Subject: | Mesoscopic Systems and Quantum Hall Effect; Strongly Correlated Electrons | cond-mat.mes-hall cond-mat.str-el | Abstract: | We observe a strong Kondo effect in a semiconductor quantum dot when a small magnetic field is applied. The Coulomb blockade for electron tunneling is overcome completely by the Kondo effect and the conductance reaches the unitary-limit value. We compare the experimental Kondo temperature with the theoretical predictions for the spin-1/2 Anderson impurity model. Excellent agreement is found throughout the Kondo regime. Phase coherence is preserved when a Kondo quantum dot is included in one of the arms of an Aharonov-Bohm ring structure and the phase behavior differs from previous results on a non-Kondo dot. | Source: | arXiv, cond-mat/0009405 | Services: | Forum | Review | PDF | Favorites |
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