Time - evolution of the GaAs ( 0 0 1 ) pre - roughening process
نویسندگان
چکیده
The GaAs(0 0 1) surface is observed to evolve from being perfectly flat to a surface half covered with one-monolayer high spontaneously formed GaAs islands. The dynamics of this process are monitored with atomic-scale resolution using scanning tunneling microscopy. Surprisingly, pit formation dominates the early stages of island formation. Insight into the nucleation process is reported. 2003 Elsevier B.V. All rights reserved.
منابع مشابه
Dynamics of spontaneous roughening on the GaAs ( 0 0 1 ) - ( 2 4 ) surface
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