Direct Observation of Subcritical Fluctuations during the Formation of Strained Semiconductor Islands
- 10 January 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 84 (2) , 330-333
- https://doi.org/10.1103/physrevlett.84.330
Abstract
We have directly imaged subcritical fluctuations during the nucleation phase of three-dimensional islands in strained layer epitaxy. The fluctuations are defect mediated and are found to be large even at low growth temperatures. We attribute the existence of large fluctuations to the time dependence of the supersaturation. This indicates classical nucleation concepts are relevant, even at low growth temperatures.This publication has 32 references indexed in Scilit:
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