Mühle, A. and Wegscheider, Werner and Haug, Rolf J.
Coulomb-coupled concentric quantum rings.
Physica E Low-dimensional Systems and Nanostructures 40 (5), pp. 1246-1248.
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We present measurements done on a novel device consisting of two concentric quantum rings realized by local anodic oxidation in a GaAs/AlGaAs heterostructure. The outer ring is connected to external leads while the inner ring is only Coulomb-coupled to the rest of the system. We studied the electronic transport through the outer ring in dependence of an external magnetic field and found a ...
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