Fuhrer, A. and Brusheim, P. and Ihn, T. and Sigrist, Martin and Ensslin, Klaus and Wegscheider, Werner and Bichler, Max
Fano effect in a quantum-ring–quantum-dot system with tunable coupling.
Physical Review B (PRB) 73 (20), p. 205326.
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Transport measurements are presented on a quantum ring that is tunnel-coupled to a quantum dot. When the dot is in the Coulomb blockade regime, but strongly coupled to the open ring, Fano line shapes are observed in the current through the ring, when the electron number in the dot changes by 1. The symmetry of the Fano resonances is found to depend on the magnetic flux penetrating the area of the ...
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