Strained superlattices and heterostructures: Elastic considerations

The properties of tensor invariants are used to obtain the complete component array of the strain/stress field and the elastic energy density in strained heterostructures and superlattices of cubic materials. An arbitrary direction of growth is assumed. In-plane isotropic strains or stresses are con...

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Bibliographic Details
Published in:Journal of applied physics 1990-11, Vol.68 (9), p.4561-4568
Main Author: Anastassakis, E.
Format: Article
Language:English
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Summary:The properties of tensor invariants are used to obtain the complete component array of the strain/stress field and the elastic energy density in strained heterostructures and superlattices of cubic materials. An arbitrary direction of growth is assumed. In-plane isotropic strains or stresses are considered independently. Normal-to-the-plane uniaxial strains are also treated, in connection with pulsed laser annealing of bulk materials. The results are expressed in terms of the elastic constants and simple geometrical functions; they are readily applicable and require no extensive computation. Specific orientations of current interest are treated explicitly.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.346162