Negative conductance patterns of quantum dots: experiment and theory

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Rogge, M. C.; Cavaliere, F.; Sassetti, M.; Haug, R. J.; Kramer, B.: Negative conductance patterns of quantum dots: experiment and theory. In: New Journal of Physics 8 (2006), 298. DOI:

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Sum total of downloads: 115

Experimental results for the sequential transport through a lateral quantum dot in a perpendicular magnetic field are compared with theory. Regular patterns of negative differential conductances are observed in the nonlinear regime. We attempt to reproduce theoretically these patterns in a simplified model which captures the essential features of the experimental system. Orbital and spin effects are treated in terms of the Fock-Darwin model. The transport properties are described by employing a master equation with tunable tunnelling and relaxation rates. We show that the essential physics underlying the experiment can be described within our approach if the timescales of the different transport channels are well separated.
License of this version: CC BY-NC-SA 3.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2006
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 74 64.35%
2 image of flag of United States United States 18 15.65%
3 image of flag of China China 7 6.09%
4 image of flag of Netherlands Netherlands 3 2.61%
5 image of flag of Italy Italy 2 1.74%
6 image of flag of India India 2 1.74%
7 image of flag of France France 2 1.74%
8 image of flag of Iraq Iraq 1 0.87%
9 image of flag of Hungary Hungary 1 0.87%
10 image of flag of Greece Greece 1 0.87%
    other countries 4 3.48%

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