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Mesoscopic theory of defect ordering–disordering transitions in thin oxide films
Ordering of mobile defects in functional materials can give rise to fundamentally new phases possessing ferroic and multiferroic functionalities. Here we develop the Landau theory for strain induced ordering of defects (e.g. oxygen vacancies) in thin oxide films, considering both the ordering and wa...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7759602/ https://www.ncbi.nlm.nih.gov/pubmed/33361783 http://dx.doi.org/10.1038/s41598-020-79482-w |
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author | Morozovska, Anna N. Eliseev, Eugene A. Karpinsky, Dmitry V. Silibin, Maxim V. Vasudevan, Rama Kalinin, Sergei V. Genenko, Yuri A. |
author_facet | Morozovska, Anna N. Eliseev, Eugene A. Karpinsky, Dmitry V. Silibin, Maxim V. Vasudevan, Rama Kalinin, Sergei V. Genenko, Yuri A. |
author_sort | Morozovska, Anna N. |
collection | PubMed |
description | Ordering of mobile defects in functional materials can give rise to fundamentally new phases possessing ferroic and multiferroic functionalities. Here we develop the Landau theory for strain induced ordering of defects (e.g. oxygen vacancies) in thin oxide films, considering both the ordering and wavelength of possible instabilities. Using derived analytical expressions for the energies of various defect-ordered states, we calculated and analyzed phase diagrams dependence on the film-substrate mismatch strain, concentration of defects, and Vegard coefficients. Obtained results open possibilities to create and control superstructures of ordered defects in thin oxide films by selecting the appropriate substrate and defect concentration. |
format | Online Article Text |
id | pubmed-7759602 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-77596022020-12-30 Mesoscopic theory of defect ordering–disordering transitions in thin oxide films Morozovska, Anna N. Eliseev, Eugene A. Karpinsky, Dmitry V. Silibin, Maxim V. Vasudevan, Rama Kalinin, Sergei V. Genenko, Yuri A. Sci Rep Article Ordering of mobile defects in functional materials can give rise to fundamentally new phases possessing ferroic and multiferroic functionalities. Here we develop the Landau theory for strain induced ordering of defects (e.g. oxygen vacancies) in thin oxide films, considering both the ordering and wavelength of possible instabilities. Using derived analytical expressions for the energies of various defect-ordered states, we calculated and analyzed phase diagrams dependence on the film-substrate mismatch strain, concentration of defects, and Vegard coefficients. Obtained results open possibilities to create and control superstructures of ordered defects in thin oxide films by selecting the appropriate substrate and defect concentration. Nature Publishing Group UK 2020-12-24 /pmc/articles/PMC7759602/ /pubmed/33361783 http://dx.doi.org/10.1038/s41598-020-79482-w Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Morozovska, Anna N. Eliseev, Eugene A. Karpinsky, Dmitry V. Silibin, Maxim V. Vasudevan, Rama Kalinin, Sergei V. Genenko, Yuri A. Mesoscopic theory of defect ordering–disordering transitions in thin oxide films |
title | Mesoscopic theory of defect ordering–disordering transitions in thin oxide films |
title_full | Mesoscopic theory of defect ordering–disordering transitions in thin oxide films |
title_fullStr | Mesoscopic theory of defect ordering–disordering transitions in thin oxide films |
title_full_unstemmed | Mesoscopic theory of defect ordering–disordering transitions in thin oxide films |
title_short | Mesoscopic theory of defect ordering–disordering transitions in thin oxide films |
title_sort | mesoscopic theory of defect ordering–disordering transitions in thin oxide films |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7759602/ https://www.ncbi.nlm.nih.gov/pubmed/33361783 http://dx.doi.org/10.1038/s41598-020-79482-w |
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