Abstract
The rate of thermal decay of a metastable sawtooth morphology on Si(111) is greatly accelerated by the application of a bulk direct current in the “uphill” direction. STM measurements of the rate are compared with a mesoscopic theory of surface mass transport incorporating an effective surface electromigration force on the diffusing species. Quantitative agreement with the experimental observations is obtained for an effective charge ≤ 0.01 electron charge at 900°C.
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