Surface effects on the self equilibrium, self bending and symmetry lowering of nanofilms
| العنوان: | Surface effects on the self equilibrium, self bending and symmetry lowering of nanofilms |
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| المؤلفون: | Lingfang Li, Zhixiang Gao, Meiqin Han, Jiangang Li, Huili Zhang |
| المصدر: | Scientific Reports Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019) |
| بيانات النشر: | Nature Publishing Group UK, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Nanotube, Materials science, Slice thickness, lcsh:Medicine, Physics::Optics, 02 engineering and technology, Crystal structure, 01 natural sciences, Article, Physics::Fluid Dynamics, Lattice constant, Surface elasticity, 0103 physical sciences, Vertical direction, lcsh:Science, 010302 applied physics, Curl (mathematics), Theory and computation, Multidisciplinary, Nanoscale materials, Condensed matter physics, Surface stress, lcsh:R, 021001 nanoscience & nanotechnology, Nanoscale devices, lcsh:Q, 0210 nano-technology |
| الوصف: | A continuum theoretical scheme for self equilibrium, self bending and symmetry lowering of nanofilms was obtained by considering surface elasticity, surface stress and the corresponding surface slice thickness. When surface stress and surface elasticity are both balance, the nanofilm is simply compressed (or expanded). When the surface stress or surface elasticity is imbalance, the nanofilm will bend. On the other hand, surface stress and surface elasticity imbalances induce a nanofilm to curl into a nanotube when the nanofilm is very thin. The surface stress and surface elasticity balances induce uniform in-plane strain (the overall film relaxation), while the vertical direction of the nanofilm relaxes reversely due to Poisson’s effect. And then, the crystal lattice constants of in-plane and vertical directions are different from each other, the ratio of these two lattice constants decrease with film thickness increase. Hence, the symmetry of the nanofilm is lowered by the overall film relaxation. |
| اللغة: | English |
| تدمد: | 2045-2322 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81f95348620d777e472fdec40a105b39 http://europepmc.org/articles/PMC6861242 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....81f95348620d777e472fdec40a105b39 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20452322 |
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