Nanodomain structure of single crystalline nickel oxide

Abstract In this work we present a comprehensive study of the domain structure of a nickel oxide single crystal grown by floating zone melting and suggest a correlation between point defects and the observed domain structure. The properties and structure of domains dictate the dynamics of resistive...

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Autores principales:	B. Walls, A. A. Mazilkin, B. O. Mukhamedov, A. Ionov, I. A. Smirnova, A. V. Ponomareva, K. Fleischer, N. A. Kozlovskaya, D. A. Shulyatev, I. A. Abrikosov, I. V. Shvets, S. I. Bozhko
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/13d940c1e4d74f789fc32054ce6c1961
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spelling	oai:doaj.org-article:13d940c1e4d74f789fc32054ce6c19612021-12-02T14:11:30ZNanodomain structure of single crystalline nickel oxide10.1038/s41598-021-82070-12045-2322https://doaj.org/article/13d940c1e4d74f789fc32054ce6c19612021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82070-1https://doaj.org/toc/2045-2322Abstract In this work we present a comprehensive study of the domain structure of a nickel oxide single crystal grown by floating zone melting and suggest a correlation between point defects and the observed domain structure. The properties and structure of domains dictate the dynamics of resistive switching, water splitting and gas sensing, to name but a few. Investigating the correlation between point defects and domain structure can provide a deeper understanding of their formation and structure, which potentially allows one to tailor domain structure and the dynamics of the aforementioned applications. A range of inhomogeneities are observed by diffraction and microscopy techniques. X-ray and low-energy electron diffraction reveal domains on the submicron- and nanometer-scales, respectively. In turn, these domains are visualised by atomic force and scanning tunneling microscopy (STM), respectively. A comprehensive transmission electron microscopy (TEM) study reveals inhomogeneities ranging from domains of varying size, misorientation of domains, variation of the lattice constant and bending of lattice planes. X-ray photoelectron spectroscopy and electron energy-loss spectroscopy indicate the crystal is Ni deficient. Density functional theory calculations—considering the spatial and electronic disturbance induced by the favourable nickel vacancy—reveal a nanoscale distortion comparable to STM and TEM observations. The different inhomogeneities are understood in terms of the structural relaxation induced by ordering of nickel vacancies, which is predicted to be favourable.B. WallsA. A. MazilkinB. O. MukhamedovA. IonovI. A. SmirnovaA. V. PonomarevaK. FleischerN. A. KozlovskayaD. A. ShulyatevI. A. AbrikosovI. V. ShvetsS. I. BozhkoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q B. Walls A. A. Mazilkin B. O. Mukhamedov A. Ionov I. A. Smirnova A. V. Ponomareva K. Fleischer N. A. Kozlovskaya D. A. Shulyatev I. A. Abrikosov I. V. Shvets S. I. Bozhko Nanodomain structure of single crystalline nickel oxide
description	Abstract In this work we present a comprehensive study of the domain structure of a nickel oxide single crystal grown by floating zone melting and suggest a correlation between point defects and the observed domain structure. The properties and structure of domains dictate the dynamics of resistive switching, water splitting and gas sensing, to name but a few. Investigating the correlation between point defects and domain structure can provide a deeper understanding of their formation and structure, which potentially allows one to tailor domain structure and the dynamics of the aforementioned applications. A range of inhomogeneities are observed by diffraction and microscopy techniques. X-ray and low-energy electron diffraction reveal domains on the submicron- and nanometer-scales, respectively. In turn, these domains are visualised by atomic force and scanning tunneling microscopy (STM), respectively. A comprehensive transmission electron microscopy (TEM) study reveals inhomogeneities ranging from domains of varying size, misorientation of domains, variation of the lattice constant and bending of lattice planes. X-ray photoelectron spectroscopy and electron energy-loss spectroscopy indicate the crystal is Ni deficient. Density functional theory calculations—considering the spatial and electronic disturbance induced by the favourable nickel vacancy—reveal a nanoscale distortion comparable to STM and TEM observations. The different inhomogeneities are understood in terms of the structural relaxation induced by ordering of nickel vacancies, which is predicted to be favourable.
format	article
author	B. Walls A. A. Mazilkin B. O. Mukhamedov A. Ionov I. A. Smirnova A. V. Ponomareva K. Fleischer N. A. Kozlovskaya D. A. Shulyatev I. A. Abrikosov I. V. Shvets S. I. Bozhko
author_facet	B. Walls A. A. Mazilkin B. O. Mukhamedov A. Ionov I. A. Smirnova A. V. Ponomareva K. Fleischer N. A. Kozlovskaya D. A. Shulyatev I. A. Abrikosov I. V. Shvets S. I. Bozhko
author_sort	B. Walls
title	Nanodomain structure of single crystalline nickel oxide
title_short	Nanodomain structure of single crystalline nickel oxide
title_full	Nanodomain structure of single crystalline nickel oxide
title_fullStr	Nanodomain structure of single crystalline nickel oxide
title_full_unstemmed	Nanodomain structure of single crystalline nickel oxide
title_sort	nanodomain structure of single crystalline nickel oxide
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/13d940c1e4d74f789fc32054ce6c1961
work_keys_str_mv	AT bwalls nanodomainstructureofsinglecrystallinenickeloxide AT aamazilkin nanodomainstructureofsinglecrystallinenickeloxide AT bomukhamedov nanodomainstructureofsinglecrystallinenickeloxide AT aionov nanodomainstructureofsinglecrystallinenickeloxide AT iasmirnova nanodomainstructureofsinglecrystallinenickeloxide AT avponomareva nanodomainstructureofsinglecrystallinenickeloxide AT kfleischer nanodomainstructureofsinglecrystallinenickeloxide AT nakozlovskaya nanodomainstructureofsinglecrystallinenickeloxide AT dashulyatev nanodomainstructureofsinglecrystallinenickeloxide AT iaabrikosov nanodomainstructureofsinglecrystallinenickeloxide AT ivshvets nanodomainstructureofsinglecrystallinenickeloxide AT sibozhko nanodomainstructureofsinglecrystallinenickeloxide
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Nanodomain structure of single crystalline nickel oxide

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