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Enhanced instability of strained alloy films due to compositional stresses | | B J Spencer
; P W Voorhees
; J Tersoff
; | | Date: |
13 Mar 2000 | | Journal: | Phys Rev Lett, 84 (11), 2449-52 | | Abstract: | A single-component strained film is known to be unstable to the stress-driven morphological instability. Here, we determine how the instability is modified in an alloy film by considering the effect of compositional stresses due to an atomic size difference. We find that the coupling of composition to stress always makes the film more unstable to the formation of stress-driven surface undulations. The destabilization is greatest over a range of intermediate deposition rates. | | Source: | PubMed, pmid11018907 | | Services: | Forum | Review | Favorites | |
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