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26 April 2024 |
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Conductance oscillations in tunnel-coupled quantum dots in the quantum Hall regime | | C. Livermore
; D.S. Duncan
; R.M. Westervelt K.D. Maranowski
; A.C. Gossard
; | | Date: |
3 Dec 1998 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Affiliation: | Division of Engineering & Applied Sciences and Department of Physics, Harvard University) K.D. Maranowski and A.C. Gossard (Materials Department, University of California, Santa Barbara | | Abstract: | We present measurements of transport through two tunnel-coupled quantum dots of different sizes connected in series in a strong, variable, perpendicular magnetic field. Double dot conductance was measured both as a function of magnetic field, which was varied across the filling factor nu = 4 quantum Hall plateau, and as a function of charge induced evenly on the two dots. The conductance peaks undergo position shifts and height modulations as the magnetic field is varied. These shifts and modulations form a pattern that repeats over large ranges of magnetic field and with the addition of double dot charge. The robust pattern repetition is consistent with a frequency locking effect. | | Source: | arXiv, cond-mat/9812057 | | Services: | Forum | Review | PDF | Favorites | |
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