image: This is a conceptual illustration of surface property measurement with atomic resolution using a scanning tunneling microscope. When the single atom tip of the STM is extremely close to the surface a tunneling current can be measured providing atomic resolution. This image relates to an article that appeared in the Sept. 11, 2009, issue of Science, published by AAAS. The study, by Dr. H. Akagi at University of Ottawa in Ottawa, Ontario, Canada and colleagues, was titled, "Laser Tunnel Ionization from Multiple Orbitals in HCl." view more
Credit: [Image courtesy of National Research Council of Canada]