New calculational method for epitaxial energy: Application to an axial commensurate interface
- 16 April 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 64 (16) , 1923-1926
- https://doi.org/10.1103/physrevlett.64.1923
Abstract
A new ‘‘mapping technique’’ is introduced which allows the study of epitaxy in systems that are commensurate or incommensurate. This method is applied to the epitaxy of fcc(111)/bcc(110) which is commensurate in one direction and incommensurate in the other. The mapping technique predicts a new epitaxial orientation, in good agreement with recent experimental results. The use of second-order perturbation theory in conjunction with the mapping technique predicts a change in epitaxial orientations as a function of island size and stiffness of overlayer lattice.Keywords
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