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Calculation of Elastic Bond Constants in Atomistic Strain Analysis
Strain analysis has significance both for tailoring material properties and designing nanoscale devices. In particular, strain plays a vital role in engineering the growth thermodynamics and kinetics and is applicable for designing optoelectronic devices. In this paper, we present a methodology for...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4608958/ https://www.ncbi.nlm.nih.gov/pubmed/26474884 http://dx.doi.org/10.1186/s11671-015-1109-7 |
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author | Chen, Haiyuan Wang, Juanjuan Ashalley, Eric Li, Handong Niu, Xiaobin |
author_facet | Chen, Haiyuan Wang, Juanjuan Ashalley, Eric Li, Handong Niu, Xiaobin |
author_sort | Chen, Haiyuan |
collection | PubMed |
description | Strain analysis has significance both for tailoring material properties and designing nanoscale devices. In particular, strain plays a vital role in engineering the growth thermodynamics and kinetics and is applicable for designing optoelectronic devices. In this paper, we present a methodology for establishing the relationship between elastic bond constants and measurable parameters, i.e., Poisson’s ratio ν and systematic elastic constant K. At the atomistic level, this approach is within the framework of linear elastic theory and encompasses the neighbor interactions when an atom is introduced to stress. Departing from the force equilibrium equations, the relationships between ν, K, and spring constants are successfully established. Both the two-dimensional (2D) square lattice and common three-dimensional (3D) structures are taken into account in the procedure for facilitating, bridging the gap between structural complexity and numerical experiments. A new direction for understanding the physical phenomena in strain engineering is established. |
format | Online Article Text |
id | pubmed-4608958 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-46089582015-10-21 Calculation of Elastic Bond Constants in Atomistic Strain Analysis Chen, Haiyuan Wang, Juanjuan Ashalley, Eric Li, Handong Niu, Xiaobin Nanoscale Res Lett Nano Express Strain analysis has significance both for tailoring material properties and designing nanoscale devices. In particular, strain plays a vital role in engineering the growth thermodynamics and kinetics and is applicable for designing optoelectronic devices. In this paper, we present a methodology for establishing the relationship between elastic bond constants and measurable parameters, i.e., Poisson’s ratio ν and systematic elastic constant K. At the atomistic level, this approach is within the framework of linear elastic theory and encompasses the neighbor interactions when an atom is introduced to stress. Departing from the force equilibrium equations, the relationships between ν, K, and spring constants are successfully established. Both the two-dimensional (2D) square lattice and common three-dimensional (3D) structures are taken into account in the procedure for facilitating, bridging the gap between structural complexity and numerical experiments. A new direction for understanding the physical phenomena in strain engineering is established. Springer US 2015-10-16 /pmc/articles/PMC4608958/ /pubmed/26474884 http://dx.doi.org/10.1186/s11671-015-1109-7 Text en © Chen et al. 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Nano Express Chen, Haiyuan Wang, Juanjuan Ashalley, Eric Li, Handong Niu, Xiaobin Calculation of Elastic Bond Constants in Atomistic Strain Analysis |
title | Calculation of Elastic Bond Constants in Atomistic Strain Analysis |
title_full | Calculation of Elastic Bond Constants in Atomistic Strain Analysis |
title_fullStr | Calculation of Elastic Bond Constants in Atomistic Strain Analysis |
title_full_unstemmed | Calculation of Elastic Bond Constants in Atomistic Strain Analysis |
title_short | Calculation of Elastic Bond Constants in Atomistic Strain Analysis |
title_sort | calculation of elastic bond constants in atomistic strain analysis |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4608958/ https://www.ncbi.nlm.nih.gov/pubmed/26474884 http://dx.doi.org/10.1186/s11671-015-1109-7 |
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