Abstract
The characteristics of the conductance fluctuations, observed in the low-temperature magnetoresistance of an open quantum-dot molecule formed from a pair of split-gate quantum dots, have been studied. The evolution of these fluctuations suggests a decrease in the typical area for coherent interference with decreasing the coupling strength between the two dot. We discuss this behavior in terms of a transition from multi- to single-dot interference as a function of the inter-dot coupling. Moreover, an existence of interference trajectories which were independent of the dot coupling was also found in our analysis.
Original language | English (US) |
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Pages (from-to) | 89-90 |
Number of pages | 2 |
Journal | Physica E: Low-Dimensional Systems and Nanostructures |
Volume | 18 |
Issue number | 1-3 |
DOIs | |
State | Published - May 2003 |
Event | 23rd International Conference on Low Temperature Physics - Hiroshima, Japan Duration: Aug 20 2002 → Aug 27 2002 |
Keywords
- Coupled dot
- Low temperature
- Magnetoconductance
- Quantum interference
- Quantum-dot molecule
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics