Exploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces

Abstract Engineering oxygen vacancy formation and distribution is a powerful route for controlling the oxygen sublattice evolution that affects diverse functional behavior. The controlling of the oxygen vacancy formation process is particularly important for inducing topotactic phase transitions tha...

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Autores principales:	Wenrui Zhang, Jie Zhang, Shaobo Cheng, Christopher M. Rouleau, Kim Kisslinger, Lihua Zhang, Yimei Zhu, Thomas Z. Ward, Gyula Eres
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Epitaxial interface Nanocomposite Functional oxides Oxygen vacancy Topotactic phase transition Technology T
Acceso en línea:	https://doaj.org/article/368b39dbd6d743499f1e822b996c9160
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spelling	oai:doaj.org-article:368b39dbd6d743499f1e822b996c91602021-12-05T12:04:54ZExploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces10.1007/s40820-021-00752-x2311-67062150-5551https://doaj.org/article/368b39dbd6d743499f1e822b996c91602021-12-01T00:00:00Zhttps://doi.org/10.1007/s40820-021-00752-xhttps://doaj.org/toc/2311-6706https://doaj.org/toc/2150-5551Abstract Engineering oxygen vacancy formation and distribution is a powerful route for controlling the oxygen sublattice evolution that affects diverse functional behavior. The controlling of the oxygen vacancy formation process is particularly important for inducing topotactic phase transitions that occur by transformation of the oxygen sublattice. Here we demonstrate an epitaxial nanocomposite approach for exploring the spatial control of topotactic phase transition from a pristine perovskite phase to an oxygen vacancy-ordered brownmillerite (BM) phase in a model oxide La0.7Sr0.3MnO3 (LSMO). Incorporating a minority phase NiO in LSMO films creates ultrahigh density of vertically aligned epitaxial interfaces that strongly influence the oxygen vacancy formation and distribution in LSMO. Combined structural characterizations reveal strong interactions between NiO and LSMO across the epitaxial interfaces leading to a topotactic phase transition in LSMO accompanied by significant morphology evolution in NiO. Using the NiO nominal ratio as a single control parameter, we obtain intermediate topotactic nanostructures with distinct distribution of the transformed LSMO-BM phase, which enables systematic tuning of magnetic and electrical transport properties. The use of self-assembled heterostructure interfaces by the epitaxial nanocomposite platform enables more versatile design of topotactic phase structures and correlated functionalities that are sensitive to oxygen vacancies.Wenrui ZhangJie ZhangShaobo ChengChristopher M. RouleauKim KisslingerLihua ZhangYimei ZhuThomas Z. WardGyula EresSpringerOpenarticleEpitaxial interfaceNanocompositeFunctional oxidesOxygen vacancyTopotactic phase transitionTechnologyTENNano-Micro Letters, Vol 14, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Epitaxial interface Nanocomposite Functional oxides Oxygen vacancy Topotactic phase transition Technology T
spellingShingle	Epitaxial interface Nanocomposite Functional oxides Oxygen vacancy Topotactic phase transition Technology T Wenrui Zhang Jie Zhang Shaobo Cheng Christopher M. Rouleau Kim Kisslinger Lihua Zhang Yimei Zhu Thomas Z. Ward Gyula Eres Exploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces
description	Abstract Engineering oxygen vacancy formation and distribution is a powerful route for controlling the oxygen sublattice evolution that affects diverse functional behavior. The controlling of the oxygen vacancy formation process is particularly important for inducing topotactic phase transitions that occur by transformation of the oxygen sublattice. Here we demonstrate an epitaxial nanocomposite approach for exploring the spatial control of topotactic phase transition from a pristine perovskite phase to an oxygen vacancy-ordered brownmillerite (BM) phase in a model oxide La0.7Sr0.3MnO3 (LSMO). Incorporating a minority phase NiO in LSMO films creates ultrahigh density of vertically aligned epitaxial interfaces that strongly influence the oxygen vacancy formation and distribution in LSMO. Combined structural characterizations reveal strong interactions between NiO and LSMO across the epitaxial interfaces leading to a topotactic phase transition in LSMO accompanied by significant morphology evolution in NiO. Using the NiO nominal ratio as a single control parameter, we obtain intermediate topotactic nanostructures with distinct distribution of the transformed LSMO-BM phase, which enables systematic tuning of magnetic and electrical transport properties. The use of self-assembled heterostructure interfaces by the epitaxial nanocomposite platform enables more versatile design of topotactic phase structures and correlated functionalities that are sensitive to oxygen vacancies.
format	article
author	Wenrui Zhang Jie Zhang Shaobo Cheng Christopher M. Rouleau Kim Kisslinger Lihua Zhang Yimei Zhu Thomas Z. Ward Gyula Eres
author_facet	Wenrui Zhang Jie Zhang Shaobo Cheng Christopher M. Rouleau Kim Kisslinger Lihua Zhang Yimei Zhu Thomas Z. Ward Gyula Eres
author_sort	Wenrui Zhang
title	Exploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces
title_short	Exploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces
title_full	Exploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces
title_fullStr	Exploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces
title_full_unstemmed	Exploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces
title_sort	exploring the spatial control of topotactic phase transitions using vertically oriented epitaxial interfaces
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/368b39dbd6d743499f1e822b996c9160
work_keys_str_mv	AT wenruizhang exploringthespatialcontroloftopotacticphasetransitionsusingverticallyorientedepitaxialinterfaces AT jiezhang exploringthespatialcontroloftopotacticphasetransitionsusingverticallyorientedepitaxialinterfaces AT shaobocheng exploringthespatialcontroloftopotacticphasetransitionsusingverticallyorientedepitaxialinterfaces AT christophermrouleau exploringthespatialcontroloftopotacticphasetransitionsusingverticallyorientedepitaxialinterfaces AT kimkisslinger exploringthespatialcontroloftopotacticphasetransitionsusingverticallyorientedepitaxialinterfaces AT lihuazhang exploringthespatialcontroloftopotacticphasetransitionsusingverticallyorientedepitaxialinterfaces AT yimeizhu exploringthespatialcontroloftopotacticphasetransitionsusingverticallyorientedepitaxialinterfaces AT thomaszward exploringthespatialcontroloftopotacticphasetransitionsusingverticallyorientedepitaxialinterfaces AT gyulaeres exploringthespatialcontroloftopotacticphasetransitionsusingverticallyorientedepitaxialinterfaces
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Exploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces

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