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Hole injection from scanning tunneling microscope (STM) tips was found to enhance diffusion of chlorine atoms on Si(111)-(7x7) surface. The sample bias dependence exhibits a broad peak centered at a sample bias, V s ~-2.0V and the diffusion rate at the peak bias voltage depends linearly on the injected current. The effect spreads laterally along the surface over a range of ~10 nm from the...
We found that electron injection from the probe tips of scanning tunneling microscopes enhances the diffusion and desorption of Cl atoms on a Si(111)-(7x7) surface, featured by a significant peak at a sample bias of ~+4 V for the diffusion, the linear dependence on the injected current, the spatial spread of the effect laterally over a range of ~10 nm from the tip position without extending beyond...
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