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Proceedings Paper

Stress-promoted surface kinetics as a precursor of islanding
Author(s): Boris I. Yakobson
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Paper Abstract

Stress-modulated surface kinetics offers a possible path to the ultimate fracture of brittle solids. Similarly, it leads to a breakup of growing strained layer into the separate domains- islands. A proposed reduced description of a single growing concavity and an interpolation between small and large amplitude limits lead to a two-parameter model of the islanding precursor: it starts from a smooth boundary and generates a sharp cusp, which enables a further growth of incoherent islands. Within the `local description' approximation we outline a general dynamic behavior of stressed interface, with the possibility of relaxation loops; they may be responsible for the barrierless formation of dislocations and stress relief.

Paper Details

Date Published: 11 May 1994
PDF: 10 pages
Proc. SPIE 2140, Epitaxial Growth Processes, (11 May 1994); doi: 10.1117/12.175794
Show Author Affiliations
Boris I. Yakobson, North Carolina State Univ. (United States)

Published in SPIE Proceedings Vol. 2140:
Epitaxial Growth Processes
Chris J. Palmstrom; Maria C. Tamargo, Editor(s)

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