Repp, Jascha and Meyer, Gerhard and Olsson, Fredrik E. and Persson, Mats (2004) Controlling the Charge State of Individual Gold Adatoms. Science 305 (5683), pp. 493-495.
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The nature and control of individual metal atoms on insulators are of great importance in emerging atomic-scale technologies. Individual gold atoms on an ultrathin insulating sodium chloride film supported by a copper surface exhibit two different charge states, which are stabilized by the large ionic polarizability of the film. The charge state and associated physical and chemical properties such as diffusion can be controlled by adding or removing a single electron to or from the adatom with a scanning tunneling microscope tip. The simple physical mechanism behind the charge bistability in this case suggests that this is a common phenomenon for adsorbates on polar insulating films.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Chair Professor Giessibl > Group Jascha Repp|
|Subjects:||500 Science > 530 Physics|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||03 Jul 2012 13:18|
|Last Modified:||06 Nov 2012 15:10|
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