A hybrid double-dot in silicon
  We report electrical measurements of a single arsenic dopant atom in the tunnel-barrier of a silicon SET. As well as performing electrical characterization of the individual dopant, we study series electrical transport through the dopant and SET. We measure the triple points of this hybrid double dot, using simulations to support our results, and show that we can tune the electrostatic coupling between the two sub-systems. 
M. Fernando Gonzalez-Zalba, Dominik Heiss and Andrew J. Ferguson
cond-mat.mes-hall