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Lookup NU author(s): Professor Nick Cowern
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The energetics of point defects and diffusion in a single crystal is analyzed with respect to stress in overlying or encapsulating layers. The resulting theory subsumes previous formulations of pressure and stress effects on diffusion. A key prediction is that stress on the overlayer side of the crystal boundary perturbs point defect concentrations in the underlying crystal. The effect can occur without significant strain in the crystal itself. The theory is compared with available published data on diffusion in silicon under thin strained overlayers. © 2007 The American Physical Society.
Author(s): Cowern NEB
Publication type: Article
Publication status: Published
Journal: Physical Review Letters
Year: 2007
Volume: 99
Issue: 15
Pages: -
Print publication date: 12/10/2007
ISSN (print): 0031-9007
ISSN (electronic): 1079-7114
Publisher: American Physical Society
URL: http://dx.doi.org/10.1103/PhysRevLett.99.155903
DOI: 10.1103/PhysRevLett.99.155903
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