Three-dimensional phase field simulation for surface roughening of heteroepitaxial films with elastic anisotropy

Ni Y; He LH; Soh AK

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Three-dimensional phase field simulation for surface roughening of heteroepitaxial films with elastic anisotropy

机译：具有弹性各向异性的异质外延膜表面粗糙化的三维相场模拟

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The phase field methods have been employed to study the surface roughening of heteroepitaxial films with cubic elastic anisotropy in three dimensions during the annealing process. And the stress field for an arbitrarily-shaped surface has been simultaneously solved using the phase field microelasticity model. Our simulations reveal that the self-organized surface morphologies are strongly dependent on the elastic anisotropy. It is interesting to note that one can obtain favorable surface morphologies via selection of appropriate epitaxial orientations combined with tuning the strength of elastic anisotropy or modifying the asymmetric strains induced by lattice mismatches between the epitaxial materials and substrates. (c) 2005 Elsevier B.V. All rights reserved.

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《Journal of Crystal Growth》 |2005年第2期|p. 281-292|共12页
作者
Ni Y; He LH; Soh AK;
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作者单位

Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类晶体学;
关键词
anisotropy; phase field method; surface morphology; epitaxy; FREE SOLID FILMS; MORPHOLOGICAL INSTABILITY; NONLINEAR EVOLUTION; STRAIN RELAXATION; QUANTUM DOTS; THIN-FILMS; STRESS; GROWTH; ISLANDS; INGAAS;

机译：各向异性;相场法;表面形貌;外延;自由固体膜;形貌不稳定性;非线性演化;应变松弛;量子点;薄膜;应力;生长;岛;INGAAS;

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Three-dimensional phase field simulation for surface roughening of heteroepitaxial films with elastic anisotropy

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