Probing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review

Transmission electron microscopy (TEM), and its counterpart, scanning TEM (STEM), are powerful materials characterization tools capable of probing crystal structure, composition, charge distribution, electronic structure, and bonding down to the atomic scale. Recent (S)TEM instrumentation developmen...

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Autores principales:	Jenna L. Wardini, Hasti Vahidi, Huiming Guo, William J. Bowman
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	disordered crystals scanning transmission elctron microscopy 4D-STEM electron diffraction order – disorder transformations: ODTs amorphous materials Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/d45c5811491748e0b6b8e5e026355245
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spelling	oai:doaj.org-article:d45c5811491748e0b6b8e5e0263552452021-12-01T14:12:25ZProbing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review2296-264610.3389/fchem.2021.743025https://doaj.org/article/d45c5811491748e0b6b8e5e0263552452021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fchem.2021.743025/fullhttps://doaj.org/toc/2296-2646Transmission electron microscopy (TEM), and its counterpart, scanning TEM (STEM), are powerful materials characterization tools capable of probing crystal structure, composition, charge distribution, electronic structure, and bonding down to the atomic scale. Recent (S)TEM instrumentation developments such as electron beam aberration-correction as well as faster and more efficient signal detection systems have given rise to new and more powerful experimental methods, some of which (e.g., 4D-STEM, spectrum-imaging, in situ/operando (S)TEM)) facilitate the capture of high-dimensional datasets that contain spatially-resolved structural, spectroscopic, time- and/or stimulus-dependent information across the sub-angstrom to several micrometer length scale. Thus, through the variety of analysis methods available in the modern (S)TEM and its continual development towards high-dimensional data capture, it is well-suited to the challenge of characterizing isometric mixed-metal oxides such as pyrochlores, fluorites, and other complex oxides that reside on a continuum of chemical and spatial ordering. In this review, we present a suite of imaging and diffraction (S)TEM techniques that are uniquely suited to probe the many types, length-scales, and degrees of disorder in complex oxides, with a focus on disorder common to pyrochlores, fluorites and the expansive library of intermediate structures they may adopt. The application of these techniques to various complex oxides will be reviewed to demonstrate their capabilities and limitations in resolving the continuum of structural and chemical ordering in these systems.Jenna L. WardiniHasti VahidiHuiming GuoWilliam J. BowmanWilliam J. BowmanFrontiers Media S.A.articledisordered crystalsscanning transmission elctron microscopy4D-STEMelectron diffractionorder – disorder transformations: ODTsamorphous materialsChemistryQD1-999ENFrontiers in Chemistry, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	disordered crystals scanning transmission elctron microscopy 4D-STEM electron diffraction order – disorder transformations: ODTs amorphous materials Chemistry QD1-999
spellingShingle	disordered crystals scanning transmission elctron microscopy 4D-STEM electron diffraction order – disorder transformations: ODTs amorphous materials Chemistry QD1-999 Jenna L. Wardini Hasti Vahidi Huiming Guo William J. Bowman William J. Bowman Probing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review
description	Transmission electron microscopy (TEM), and its counterpart, scanning TEM (STEM), are powerful materials characterization tools capable of probing crystal structure, composition, charge distribution, electronic structure, and bonding down to the atomic scale. Recent (S)TEM instrumentation developments such as electron beam aberration-correction as well as faster and more efficient signal detection systems have given rise to new and more powerful experimental methods, some of which (e.g., 4D-STEM, spectrum-imaging, in situ/operando (S)TEM)) facilitate the capture of high-dimensional datasets that contain spatially-resolved structural, spectroscopic, time- and/or stimulus-dependent information across the sub-angstrom to several micrometer length scale. Thus, through the variety of analysis methods available in the modern (S)TEM and its continual development towards high-dimensional data capture, it is well-suited to the challenge of characterizing isometric mixed-metal oxides such as pyrochlores, fluorites, and other complex oxides that reside on a continuum of chemical and spatial ordering. In this review, we present a suite of imaging and diffraction (S)TEM techniques that are uniquely suited to probe the many types, length-scales, and degrees of disorder in complex oxides, with a focus on disorder common to pyrochlores, fluorites and the expansive library of intermediate structures they may adopt. The application of these techniques to various complex oxides will be reviewed to demonstrate their capabilities and limitations in resolving the continuum of structural and chemical ordering in these systems.
format	article
author	Jenna L. Wardini Hasti Vahidi Huiming Guo William J. Bowman William J. Bowman
author_facet	Jenna L. Wardini Hasti Vahidi Huiming Guo William J. Bowman William J. Bowman
author_sort	Jenna L. Wardini
title	Probing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review
title_short	Probing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review
title_full	Probing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review
title_fullStr	Probing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review
title_full_unstemmed	Probing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review
title_sort	probing multiscale disorder in pyrochlore and related complex oxides in the transmission electron microscope: a review
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/d45c5811491748e0b6b8e5e026355245
work_keys_str_mv	AT jennalwardini probingmultiscaledisorderinpyrochloreandrelatedcomplexoxidesinthetransmissionelectronmicroscopeareview AT hastivahidi probingmultiscaledisorderinpyrochloreandrelatedcomplexoxidesinthetransmissionelectronmicroscopeareview AT huimingguo probingmultiscaledisorderinpyrochloreandrelatedcomplexoxidesinthetransmissionelectronmicroscopeareview AT williamjbowman probingmultiscaledisorderinpyrochloreandrelatedcomplexoxidesinthetransmissionelectronmicroscopeareview AT williamjbowman probingmultiscaledisorderinpyrochloreandrelatedcomplexoxidesinthetransmissionelectronmicroscopeareview
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Probing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review

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