%0 Journal Article
%T Coulomb blockade and Kondo effect in a few-electron silicon/silicon-germanium quantum dot
%A Levente J. Klein
%A Donald E. Savage
%A Mark A. Eriksson
%J Physics
%D 2006
%I arXiv
%R 10.1063/1.2431760
%X Transport measurements at cryogenic temperatures through a few electron top gated quantum dot fabricated in a silicon/silicon-germanium heterostructure are reported. Variations in gate voltage induce a transition from an isolated dot toward a dot strongly coupled to the leads. In addition to Coulomb blockade, when the dot is strongly coupled to the leads, we observe the appearance of a zero bias conductance peak due to the Kondo effect. The Kondo peak splits in a magnetic field, and the splitting scales linearly with the applied field. We also observe a transition from pure Coulomb blockade to peaks with a Fano lineshape.
%U http://arxiv.org/abs/cond-mat/0612413v1