Science of Nanoscale Systems and their Device Applications
Science of Nanoscale Systems and their Device Applications
2005 Research Results

Image of a Single Electron Quantum Dot
R.M. Westervelt, E.J. Heller, and A.C. Gossard

Image of a GaAs quantum dot that contains just one electron.

Image of a GaAs quantum dot that contains just one electron, taken with a liquid-He cooled scanning probe microscope. The color scale shows the change in dot conductance in the Coulomb blockade regime as the SPM tip scanned above. When the charged tip moves inside the ring, it pushes the last electron off the dot.

 

  Last Modified June 20, 2006 by the NSEC Office.