Mesoscopic theory of defect ordering–disordering transitions in thin oxide films

Abstract 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 orderi...

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Autores principales:	Anna N. Morozovska, Eugene A. Eliseev, Dmitry V. Karpinsky, Maxim V. Silibin, Rama Vasudevan, Sergei V. Kalinin, Yuri A. Genenko
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f1b5c30bedfe4f849017d4fa6ed49311
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spelling	oai:doaj.org-article:f1b5c30bedfe4f849017d4fa6ed493112021-12-02T11:59:40ZMesoscopic theory of defect ordering–disordering transitions in thin oxide films10.1038/s41598-020-79482-w2045-2322https://doaj.org/article/f1b5c30bedfe4f849017d4fa6ed493112020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79482-whttps://doaj.org/toc/2045-2322Abstract 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.Anna N. MorozovskaEugene A. EliseevDmitry V. KarpinskyMaxim V. SilibinRama VasudevanSergei V. KalininYuri A. GenenkoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-13 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Anna N. Morozovska Eugene A. Eliseev Dmitry V. Karpinsky Maxim V. Silibin Rama Vasudevan Sergei V. Kalinin Yuri A. Genenko Mesoscopic theory of defect ordering–disordering transitions in thin oxide films
description	Abstract 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	article
author	Anna N. Morozovska Eugene A. Eliseev Dmitry V. Karpinsky Maxim V. Silibin Rama Vasudevan Sergei V. Kalinin Yuri A. Genenko
author_facet	Anna N. Morozovska Eugene A. Eliseev Dmitry V. Karpinsky Maxim V. Silibin Rama Vasudevan Sergei V. Kalinin Yuri A. Genenko
author_sort	Anna N. Morozovska
title	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_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_sort	mesoscopic theory of defect ordering–disordering transitions in thin oxide films
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/f1b5c30bedfe4f849017d4fa6ed49311
work_keys_str_mv	AT annanmorozovska mesoscopictheoryofdefectorderingdisorderingtransitionsinthinoxidefilms AT eugeneaeliseev mesoscopictheoryofdefectorderingdisorderingtransitionsinthinoxidefilms AT dmitryvkarpinsky mesoscopictheoryofdefectorderingdisorderingtransitionsinthinoxidefilms AT maximvsilibin mesoscopictheoryofdefectorderingdisorderingtransitionsinthinoxidefilms AT ramavasudevan mesoscopictheoryofdefectorderingdisorderingtransitionsinthinoxidefilms AT sergeivkalinin mesoscopictheoryofdefectorderingdisorderingtransitionsinthinoxidefilms AT yuriagenenko mesoscopictheoryofdefectorderingdisorderingtransitionsinthinoxidefilms
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Mesoscopic theory of defect ordering–disordering transitions in thin oxide films

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