Atomic-Scale Analysis of Self-Positioning Nanostructures
نویسندگان
چکیده
منابع مشابه
Atomic-scale modeling of self-positioning nanostructures
Atomic-scale finite element procedure for modeling of self-positioning nanostructures is developed. Our variant of the atomic-scale finite element method is based on a meshless approach and on the Tersoff interatomic potential function. The developed algorithm is used for determination of equilibrium configuration of atoms after nanostructure self-positioning. Dependency of the curvature radius...
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This article presents investigations of self-positioning microstructures and nanostructures by analytical techniques, finite element analysis and atomic-scale modeling. Closed-form solutions for curvature radius of self-positioning hinge structures are obtained for plane strain and generalized plane strain deformation. The finite element method is used for predicting hinge curvature radius for ...
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The finite element method is used for modeling of self-positioning microand nanostructures. The geometrically nonlinear problem with large rotations and large displacements is solved using step procedure with coordinate updating after each step. It is shown that the real shape of self-positioning structures is rather complicated and the analytical formulas have limited applicability in the esti...
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The finite element procedure is developed for the solution of three-dimensional geometrically nonlinear problems with small strains and large rotational and translational displacements. Updated Lagrangian formulation is used with controlling strains and stresses at local coordinate frames at element integration points. Equilibrium iterations at each step are performed according to the Newton-Ra...
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Atomic-scale modeling of self-positioning GaAs-InAs nanostructures is performed. Curvature radius values obtained by the atomic-scale finite element method are compared with a continuum mechanics solution under plane strain conditions. Atomic-scale modeling and continuum mechanics solution predict same curvature radius for structures with large thickness. However, atomic-scale modeling shows si...
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ژورنال
عنوان ژورنال: e-Journal of Surface Science and Nanotechnology
سال: 2008
ISSN: 1348-0391
DOI: 10.1380/ejssnt.2008.301