Double quantum dot with integrated charge sensor based on Ge/Si heterostructure nanowires

Yongjie Hu, Hugh O. H. Churchill, David J. Reilly, Jie Xiang, Charles M. Lieber, 3 and Charles M. Marcus Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA Division of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA (Dated: February 1, 2008)