Details
| Original language | English |
|---|---|
| Article number | 153310 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 78 |
| Issue number | 15 |
| Publication status | Published - 28 Oct 2008 |
Abstract
We performed charge detection on a lateral triple quantum dot with starlike geometry. The setup allows us to interpret the results in terms of two double dots with one common dot. One double dot features weak tunnel coupling and can be understood with atomlike electronic states, the other one is strongly coupled forming moleculelike states. In nonlinear measurements we identified patterns that can be analyzed in terms of the symmetry of tunneling rates. Those patterns strongly depend on the strength of interdot tunnel coupling and are completely different for atomiclike or moleculelike coupled quantum dots allowing the noninvasive detection of molecular bonds.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physical Review B - Condensed Matter and Materials Physics, Vol. 78, No. 15, 153310, 28.10.2008.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Noninvasive detection of molecular bonds in quantum dots
AU - Rogge, M. C.
AU - Haug, R. J.
PY - 2008/10/28
Y1 - 2008/10/28
N2 - We performed charge detection on a lateral triple quantum dot with starlike geometry. The setup allows us to interpret the results in terms of two double dots with one common dot. One double dot features weak tunnel coupling and can be understood with atomlike electronic states, the other one is strongly coupled forming moleculelike states. In nonlinear measurements we identified patterns that can be analyzed in terms of the symmetry of tunneling rates. Those patterns strongly depend on the strength of interdot tunnel coupling and are completely different for atomiclike or moleculelike coupled quantum dots allowing the noninvasive detection of molecular bonds.
AB - We performed charge detection on a lateral triple quantum dot with starlike geometry. The setup allows us to interpret the results in terms of two double dots with one common dot. One double dot features weak tunnel coupling and can be understood with atomlike electronic states, the other one is strongly coupled forming moleculelike states. In nonlinear measurements we identified patterns that can be analyzed in terms of the symmetry of tunneling rates. Those patterns strongly depend on the strength of interdot tunnel coupling and are completely different for atomiclike or moleculelike coupled quantum dots allowing the noninvasive detection of molecular bonds.
UR - http://www.scopus.com/inward/record.url?scp=55349139720&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.78.153310
DO - 10.1103/PhysRevB.78.153310
M3 - Article
AN - SCOPUS:55349139720
VL - 78
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 15
M1 - 153310
ER -