Kondo physics in tunable semiconductor nanowire quantum dots

Details Kondo physics in tunable semiconductor nanowire quantum dots Kondo physics in tunable semiconductor nanowire quantum dots

2006-08-22

arxiv.org/abs/cond-mat/0608478v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.74.233304

We have observed the Kondo effect in strongly coupled semiconducting nanowire quantum dots. The devices are made from indium arsenide nanowires, grown by molecular beam epitaxy, and contacted by titanium leads. The device transparency can be tuned by changing the potential on a gate electrode, and for increasing transparencies the effects dominating the transport changes from Coulomb Blockade to Universal Conductance Fluctuations with Kondo physics appearing in the intermediate region.

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