Journal ArticleDOI
Electron tomography and holography in materials science
TLDR
An overview of the techniques of electron tomography and electron holography is presented and their capabilities with the aid of case studies that span materials science and the interface between the physical sciences and the life sciences are demonstrated.Abstract:
The rapid development of electron tomography, in particular the introduction of novel tomographic imaging modes, has led to the visualization and analysis of three-dimensional structural and chemical information from materials at the nanometre level. In addition, the phase information revealed in electron holograms allows electrostatic and magnetic potentials to be mapped quantitatively with high spatial resolution and, when combined with tomography, in three dimensions. Here we present an overview of the techniques of electron tomography and electron holography and demonstrate their capabilities with the aid of case studies that span materials science and the interface between the physical sciences and the life sciences.read more
Citations
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Journal ArticleDOI
Synthesis of MoS2 and MoSe2 Films with Vertically Aligned Layers
TL;DR: This communication presents a synthesis process to grow MoS2 and MoSe2 thin films with vertically aligned layers, thereby maximally exposing the edges on the film surface, and confirmed their catalytic activity in a hydrogen evolution reaction (HER), in which the exchange current density correlates directly with the density of the exposed edge sites.
Journal ArticleDOI
Three-dimensional optical holography using a plasmonic metasurface
Lingling Huang,Lingling Huang,Xianzhong Chen,Holger Mühlenbernd,Hao Zhang,Shumei Chen,Shumei Chen,Benfeng Bai,Qiaofeng Tan,Guofan Jin,Kok Wai Cheah,Cheng-Wei Qiu,Jensen Li,Thomas Zentgraf,Shuang Zhang +14 more
TL;DR: Huang et al. as mentioned in this paper developed ultrathin plasmonic metasurfaces to provide 3D optical holographic image reconstruction in the visible and near-infrared regions for circularly polarized light.
Journal ArticleDOI
Towards stable catalysts by controlling collective properties of supported metal nanoparticles
TL;DR: This work presents an alternative strategy based on control over collective properties, revealing the pronounced impact of the three-dimensional nanospatial distribution of metal particles on catalyst stability and paves the way towards the rational design of practically relevant catalysts and other nanomaterials with enhanced stability and functionality.
Journal ArticleDOI
Coherent X-ray diffraction imaging of strain at the nanoscale.
Ian K. Robinson,Ross Harder +1 more
TL;DR: New X-ray diffraction techniques, which take advantage of the latest synchrotron radiation sources, can be used to obtain quantitative three-dimensional images of strain, leading to new knowledge of how nanomaterials behave within active devices and on unprecedented timescales.
Journal ArticleDOI
Three-dimensional atomic imaging of crystalline nanoparticles
Sandra Van Aert,Kees Joost Batenburg,Kees Joost Batenburg,Marta D. Rossell,Rolf Erni,Gustaaf Van Tendeloo +5 more
TL;DR: 3D reconstruction of a complex crystalline nanoparticle at atomic resolution is reported, which helps close the gap between the atomic resolution achievable in two-dimensional electron micrographs and the coarser resolution that has hitherto been obtained by conventional electron tomography.
References
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Journal ArticleDOI
The Chemical Application of High‐Resolution Electron Tomography: Bright Field or Dark Field?
John Meurig Thomas,John Meurig Thomas,Paul A. Midgley,Timothy J. V. Yates,Jonathan S. Barnard,Robert Raja,Ilke Arslan,Matthew Weyland +7 more
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Spin torque and heating effects in current-induced domain wall motion probed by transmission electron microscopy
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TL;DR: In this paper, a set of indicators are devised to separate unambiguously spin torque effects from heating and it is shown that by using the Al layer the structures are sufficiently cooled to exhibit current-induced domain wall motion due to spin torque.
Journal ArticleDOI
Vector field electron tomography of magnetic materials: theoretical development.
TL;DR: The theory of vector field electron tomography, the reconstruction of the three-dimensional magnetic induction around a magnetized object, is derived within the framework of Lorentz transmission electron microscopy and the tomographic reconstruction method is presented, based on the vector slice theorem.
Journal ArticleDOI
Three-dimensional electron microscopy of mesoporous materials--recent strides towards spatial imaging at the nanometer scale.
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Journal ArticleDOI
Image-spectroscopy--I. The advantages of increased spectral information for compositional EFTEM analysis.
P.J Thomas,Paul A. Midgley +1 more
TL;DR: The many advantages of the image-spectroscopy approach are outlined by reference to an example of elemental segregation in an AlZnMgCu alloy, allowing standard techniques for quantitative EELS analysis to be applied to extracted 'image-spectra'.
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